Polar bear biology and medicine
Torgerson, R.W. (1990). Polar bear biology and medicine, in: Dierauf, L.A. CRC handbook of marine mammal medicine: health, disease, and rehabilitation. pp. 649-666
In: Dierauf, L.A. (Ed.) (1990). Handbook of marine mammal medicine: Health, disease, and rehabilitation. CRC Press: Boca Raton. ISBN 0-8493-2990-6. 733 pp., meer
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