TY  - BOOK
AU  - De Haan J A Bierens
TI  - Animal psychology :  its nature and its problems
T2  - Hutchinson's university library; 15. Psychology of Hutchinson's university library ed by J C Flugel
U1  - S9, H6-;1 
PY  - 1946///
KW  - ANIMAL BEHAVIOUR; PSYCHOLOGY; ANIMAL BEHAVIOUR
ER  -