TY  - BOOK
AU  - Krebs, J. R.
AU  - Davies, N. B.
TI  - Behavioural ecology: an evolutionary approach 
SN  - 0878931325 :
U1  - 591.51 23
PY  - 1984///, c1978
CY  - Sunderland, Mass.
PB  - Sinauer Associates
KW  - Animal behavior
KW  - Animal ecology
KW  - Evolution
N1  - Includes bibliographical references p. (403-478 ) and index
ER  -