TY  - BOOK
AU  - Roberts,D.F.
AU  - Harrison,G.A.
TI  - Natural selection in human populations
U1  - 575.1082 
PY  - 1959///
CY  - New York
PB  - Symposium Publications Division, Pergamon Press
KW  - Natural selection
KW  - Heredity, Human
N1  - liabrary has v. 2; Includes bibliographies
ER  -