Aram, D. M., Ekelman, B. L., & Nation, J. E. (1984). Preschoolers with language disorders: 10 years later. Journal of Speech and Hearing Research, 27, 232–244.
Bax, M., Hart, H., & Jenkins, S. (1980). Assessment of speech and language development in the young child. Pediatrics, 66, 350–354.
Beitchman, J. H., Nair, R., Clegg, M., & Patel, P. G. (1986). Prevalence of speech and language disorders in 5-year-old kindergarten children in the Ottowa-Carleton region. Journal of Speech and Hearing Disorders, 51, 98–110.
Bishop, D. V. M., & Edmundson, A. (1987). Language-impaired 4-year-olds: Distinguishing transient from persistent impairment. Journal of Speech and Hearing Disorders, 52, 156–173.
Brown, R. (1973). A first language: The early stages. Cambridge, MA: Harvard University Press.
Cantwell, D., & Baker, L. (1987). Developmental speech and language disorders. New York: Guilford.
Fischel, J., Whitehurst, G., Caulfield, M., & DeBaryshe, B. (1988). Language growth in children with expressive language delay. Pediatrics, 82(2), 218–227.
Fundudis, T, Kolvin, I., & Garside, R. F. (1980). A follow-up of speech retarded children. In C. A. Hersov & M. Berger (Eds.), Language and language disorder in childhood (book supplement to the Journal of Child Psychology and Psychiatry, 2).
Hecht, B. F. (1986). Language disorders in preschool children. Advances of Special Education, 5,95–119.
Hrncir, E., Goldfarb, A., Scarr, S., & McCartney, K. (1985). Report of a screening, assessment and treatment programme for high-risk two-year-olds in Bermuda. In Frankenberg, W. M. & Emde, R. (Eds.), Early identification of children at risk: An international perspective. New York: Plenum.
Johnston, J. R. (1982). The language disordered child. In Lass, N., Northern, J., Yoder, D., & McReynolds, L., (Eds.), Speech, language and hearing. Philadelphia: W. B. Saunders.
Johnston, J. R. (1988). Specific language disorders in the child. In Lass, N., McReynolds, L., Northern, J., & Yoder, D. (Eds.), Handbook of speech language pathology and audiology. Philadelphia: B. Decker.
Johnston, J. R., & Kamhi, A. G. (1984). Syntactic and semantic aspects of the utterances of language-impaired children: The same can be less. Merrill-Palmer Quarterly, 30(1), 65–85.
Johnston, J. R., & Schery, T. K. (1976). The use of grammatical morphemes by children with communication disorders. In Morehead, D. & Morehead, A. (Eds.), Normal and deficient child language. Baltimore, MD: University Park Press.
Klackenberg, G. (1980). What happens to children with delayed speech at 3? Ada Paediatrica Scandinavica, 69, 681–685.
Leonard, L., Bolders, J., & Miller, J. (1976). An examination of the semantic relations reflected in the language usage of normal and language impaired children. Journal of Speech and Hearing Research, 19, 371–392.
Leonard, L. B., Schwartz, R. G., Chapman, K., Rowan, L. E., Prelock, P. A., Terrell, B. Y., Weiss, A. L., & Messick, C. K. (1982). Early lexical acquisition in children with specific language impairment. Journal of Speech and Hearing Research, 25, 554–563.
MacWhinney, B., & Snow, C. (1985). The child language data exchange system. Journal of Child Language, 12, 271–296.
Miller, J. F. (1981). Assessing language production in children: Experimental procedures. Baltimore, MD: University Park Press.
NINCDS. (1979). The neurological bases of language disorders in children (Monograph No. 22). Washington, DC: U.S. Government Printing Office.
Padget, S. Y. (1988). Speech- and language-impaired three- and four-year-olds: A five-year follow-up study. In Masland, R. L. & Masland, M. W. (Eds.), Preschool prevention of reading failure. Parkton, MD: York.
Paul, R. (1989). Profiles of toddlers with delayed expressive language. Paper presented at Biennial Meeting of the Society for Research in Child Development, Kansas City, MO.
Rescorla, L. (1989). The Language Development Survey: A screening tool for delayed language in toddlers. Journal of Speech and Hearing Disorders, 54, 587–599.
Rescorla, L., & Schwartz, E. (1989). Outcome of toddlers with specific expressive language delay. Paper presented at Biennial Meeting of Society for Research in Child Development, Kansas City, MO.
Richman, N., Stevenson, J., & Graham, P. J. (1975). Prevalence of behaviour problems in 3-year-old children: An epidemiological study in a London borough. Journal of Child Psychology and Psychiatry, 16, 277–287.
Scarborough, H. S. (1990). Index of Productive Syntax. Applied Psycholinguistics, 11, 1–22.
Silva, P. A. (1980). The prevalence, stability and significance of developmental language delay in preschool children. Developmental Medicine and Child Neurology, 22, 768–777.
Silva, P. A., McGee, R., & Williams, S. M. (1983). Developmental language delay from three to seven and its significance for low intelligence and reading difficulties at seven. Developmental Medicine and Child Neurology, 25, 783–793.
Silva, P. A., Williams, S. M., & McGee, R. (1987). A longitudinal study of children with developmental language delay at age three: Later intelligence, reading, and behavior problems. Developmental Medicine and Child Neurology, 29, 630–640.
Stevenson, J., & Richman, N. (1976). The prevalence of language delay in a population of three-year-old children and its association with general retardation. Developmental Medicine and Child Neurology, 18, 431–441.
Strominger, A. Z., & Bashir, A. S. (1977). A nine-year follow-up of 50 language-delayed children. Paper presented at the annual meeting of the American Speech and Hearing Association, Chicago, IL.
Tallal, P. (1988). Developmental language disorders. In Kavanaugh, J. F. & Truss, T. J. Jr., (Eds.), Learning disabilities: Proceedings of the National Conference. Parkton, MD: York Press.
Wyke, M. (1978). Developmental dysphasia. New York: Academic.