TY  - BOOK
AU  - Hediger, Heini
AU  - Sircom, Geoffrey
TI  - Studies of the psychology and behaviour of captive animals in zoos a nd circuses
U1  - 591.5 HED 
PY  - 1955///]
CY  - New York
PB  - Criterion Books
KW  - Psychology, Comparative
KW  - Animal behavior
N1  - Translation of Skizzen zu einer Tierpsychologie im Zoo und im Zirkus; Includes bibliography
ER  -