TY  - BOOK
AU  - Tinbergen,Niko
TI  - An objectivistic study of the innate behavior of animals.
T2  - Bibliotheca biotheoretica
AV  - QL785 .T6
U1  - 591.5 
PY  - 1942///
CY  - Leiden
PB  - E.J. Brill
KW  - Animal behavior
KW  - Psychology, Comparative
N1  - "Literature cited" : p. [95]-98
ER  -