TY - JOUR A1 - Dobzhansky, T. A1 - Allen, G. T1 - Does Natural Selection Continue to Operate in Modern Mankind? JF - American Anthropologist, Vol. 58 (1956), pp. 591-604. Y1 - 1956 ER - TY - JOUR A1 - Allen, G. T1 - Genetic Variation in Mental Development JF - N. S. Scrimshaw and J. E. Gordon (Eds.), Malnutrition, Learning, and Behavior, Cambridge (The M.I.T. Press) 1968, pp. 92-109. Y1 - 1968 ER -