TY  - GEN
AU  - Krebs , J.R. 
AU  - Davies , N.B.  
TI  - An introduction to behavioural ecology
SN  - 632035463
U1  - 591.51 
PY  - 1993///
CY  - Oxford
PB  - Blackwell Scientific Publications
KW  - Behaviour Evolution
KW  - Animal Ecology
ER  -