This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.
M. Blank (1974). Cognitive function of language in the preschool years. Developmental Psychology, 10, 229–245.
M. D. S. Braine (1976). Children's first word combinations. Monographs of the Society for Research in Child Development, 41, 1–104.
E. Carr , & E. Kologinsky (1983). Acquisition of sign language by autistic children. II: Spontaneity and generalization effects. Journal of Applied Behavior Analysis, 16, 297–314.
C. A. Dollaghan (1987). Fast mapping in normal and language-impaired children. Journal of Speech and Hearing Disorders, 52, 218–222.
R. S. Fouts (1974). Language: Origins, definition, and chimpanzees. Journal of Human Evolution, 3, 475–482.
L. Leonard , K. Chapman , L. Rowan , & A. Weiss (1983). Three hypotheses concerning young children's imitations of lexical items. Developmental Psychology, 19, 591–601.
L. Leonard , R. Schwartz , K. Chapman , L. Rowan , P. Prelock , B. Terrell , A. Weiss , & C. Messick (1982). Early lexical acquisition in children with specific language impairment. Journal of Speech and Hearing Research, 25, 554–564.
D. A. Nelson (1985). The syntactic and semantic organization of pigeon guillemot (Cepphus columba) vocal behavior. Zeitschrift für Tierpsychologie, 67, 97–130.
I. M. Pepperberg (1983a). Cognition in the African Grey parrot: Preliminary evidence for auditory/vocal comprehension of the class concept. Animal Learning and Behavior, 11, 179–185.
I. M. Pepperberg (1987b). Evidence for conceptual quantitative abilities in the African Grey parrot: Labeling of cardinal sets. Ethology, 75, 37–61.
C. A. Ristau , & D. Robbins (1982). Language in the great apes: A critical review. In J. S. Rosenblatt , R. A. Hinde , C. Beer , & M.-C. Busnel (Eds.), Advances in the study of behavior (Vol. 12, pp. 141–255). New York: Academic.
K. Salzinger (1980). The concept of behavioral mechanism in language. In O. H. Mowrer (Ed.), Psychology of language and learning (pp. 213–232). New York: Plenum.
S. Savage-Rumbaugh , D. Rumbaugh , & K. McDonald (1985). Language learning in two species of apes. Neuroscience and Biobehavioral Reviews, 9, 653–665.
A. L. Schuler (1979). Echolalia: Issues and clinical application. Journal of Speech and Hearing Disorders, 44, 413–434.
R. Schusterman , & K. Krieger (1986). Artificial language comprehension and size transposition by a California sea lion (Zalophus californianus). Journal of Comparative Psychology, 100, 348–355.
R. Schwartz , & L. Leonard (1984). Words, objects, and actions in early lexical acquisition. Journal of Speech and Hearing Research, 27, 119–127.
R. Schwartz , & L. Leonard (1985). Lexical imitation and acquisition in language-impaired children. Journal of Speech and Hearing Disorders, 50, 141–149.
E. L. Thorndike (1943). Man and his works. Cambridge, MA: Harvard University Press.