TY  - BOOK
AU  - Williams,George C
TI  - Adaptation and natural selection / 
U1  - 575 WIL 
PY  - 1966///.
CY  - Princeton : 
PB  - Princeton University Press
KW  - Adaptation
KW  - Natural selection
KW  - Ecology
KW  - Behaviour
N1  - Index
ER  -