TY  - BOOK
AU  - Krebs, Charles J.
AU  -  Charles J. Krebs.
TI  - Ecology
SN  - 0321068793
U1  - 577.8 KRE-E 2001 18118 
CY  - New York
PB  - Benjamin Summings
KW  - Ecology--Methodology, Population biology--Methodology, Biogeography--Methodology
ER  -