000 00339nam a22001097a 4500
082 0 _a156.2
100 1 _aHediger, H
_9217278
245 1 4 _aThe psychology and behaviour of animals in zoos and circuses
_cH. Hediger,
260 _aNew York:
_bDover publications,
_c1968.
300 _av, 161 p.
_c20 cm.
650 4 _aanimal psychology
_9217279
999 _c300995
_d300931