TY  - BOOK
AU  - Levins,Richard
TI  - Evolution in changing environments: some theoretical explorations 
U1  - 591.5 
PY  - 1968///
CY  - Princeton, N.J.
PB  - Princeton University Press
KW  - Animal populations
KW  - Animal population genetics
KW  - Evolution
KW  - Ecology
N1  - Bibliography: p. 113-116
ER  -