TY  - BOOK
AU  - Krebs,J.R.
AU  - Davies,N.B.
TI  - An introduction to behavioural ecology
SN  - 0632006668
PY  - 1981///
CY  - Oxford
PB  - Blackwell Scientific Publications
KW  - Zoology
KW  - Evolution
N1  - Includes index and references
ER  -