TY  - BOOK
AU  - Tinbergen,Nikolas
TI  - The animal in its world: explorations of an ethologist, 1932-72 
SN  - 0674037251
PY  - 1972///
CY  - Cambridge, Mass.
PB  - Harvard University Press
KW  - Animals, Habits and behavior of
N1  - References; CONTENT:-v.1. Field studies - v.2. Laboratory experiments and general papers
ER  -