Adam, A. (1969) A further query on colour blindness and natural selection. Soc. Biol.. 16, 197.
Dutta, P.C. (1966) A review of the inherited defective colour vision variability and selection relaxation among the Indians. Acta genet. statist. med. 16, 327.
Malhotra, K.C. (1967) The incidence of inherited defects of colour vision in eight endogamous groups of Maharashtra Brahmin. Acta genet. med. Gemell. 4, 417.
Malhotra, K.C., Mutalik, G.S., Bhanu, B.V., Kate, S.L. & Fulmali, P.M. (1974) Incidence of colour blindness among four endogamous nomadic groups: and example of natural selection. Heredity, 32, 145.
Pickford, R.W. (1963) Natural selection and colour blindness. Eugen. Rev.. 55, 97.
Post, R.H. (1962) Population differences in red–green colour vision deficiency. Eugen. Q. 9, 131.
Sanghvi, L.D. & Khanolkar, V.R. (1949) Data relating to seven genetical characters in six endogamous groups in Bombay. Ann. Eugen.. 15, 52.