TY - BOOK A1 - Simpson, G. G. T1 - Biology and man, New York (Harcourt, Brace & World, Inc.), 1969. Y1 - 1969 N1 - Marks in the copy ER - TY - JOUR A1 - Simpson, G. G. T1 - The biological nature of man JF - S. L. Washburn and P. C. Jay, Perspectives on human evolution, New York, et al. (Holt, Rinehart and Winston) 1968, pp. 1-17. Y1 - 1968 N1 - Marks in the copy ER -