TY  - BOOK
AU  - Pianka, Eric R.
TI  - Evolutionary ecology
SN  - 0-321-04288-3.
AV  - QH541.P5 
CY  - San Francisco
KW  -  Animal ecology
KW  -  Evolution (Biology)
KW  -  Population biology
KW  - Biology
KW  - Ecology
ER  -