TY  - BOOK
AU  - Krebs,J.R.
AU  - Davies,N.B.
TI  - Behavioural ecology: an evolutionary approach 
SN  - 0632002859 (pbk.)
PY  - 1978///
CY  - Oxford
PB  - Blackwell Scientific Publications
KW  - Animals habits and behaviorof
KW  - Ecology
KW  - Evolution
N1  - Includes index; Includes bibliographical references
ER  -