TY  - BOOK
AU  - Krebs, Charles J
TI  - Ecology: The experimental analysis of distribution and abundance 
SN  - 0063503913
U1  - 577 
PY  - 1817///
CY  - New York
PB  - Harper and Row Publishers
KW  - Zoology
KW  - Ecology
KW  - Population
ER  -