TY  - BOOK
AU  - Smith,F.V.
TI  - Purpose in animal behaviour
SN  - 0091091306
AV  - QL751 .S637
U1  - 591.5 
PY  - 1971///
CY  - London
PB  - Hutchinson
KW  - Animal behavior
KW  - Local
N1  - Bibliography: p. [173]-183
ER  -