Himalayan black bear exhibit at Glasgow Zoo
作者： R. J. P. O'GRADY , G. LAW , H. BOYLE , A. MACDONALD , J. JOHNSTONE
DOI: 10.1111/J.1748-1090.1990.TB03360.X
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sci-hub.se 参考文章(1)
HEINZ-GEORG KLOS, New bear exhibit in the West Berlin Zoo International Zoo Yearbook. ,vol. 14, pp. 223- 225 ,(1974) , 10.1111/J.1748-1090.1974.TB00831.X