TY  - BOOK
AU  - Stephens, David W
AU  - Krebs, J. R
TI  - Foraging theory
SN  - 9780691084428
SN  - 86042845
U1  - 591.53 STE 
PY  - 1986///
CY  - Princeton, NJ
PB  - Princeton University Press
KW  - Animals - Food
N1  - Includes index. Bibliography: p. [217]-237
ER  -