TY  - BOOK
AU  - Williams,George C.
TI  - Adaptation and natural selection: a critique of some curre t evolutionary thought
SN  - 0-691-02357-3
U1  - 575 
PY  - 1974///
CY  - PrincentonNew Jersey
PB  - University Press
KW  - Selección natural
N1  - FACULTAD DE ZOOTECNIA
ER  -