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Uganda Protectorate. Annual Report of the Game Department for the year ended 31st December, 1939
Hodgden, R. 1998. Reproductive management and research of 1.1 Eastern Black rhinoceros (Diceros bicornis michaeli) at Zoo Atlanta. AZA Annual Conference Proceedings 1997: 304-306.
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Daniel, J.C. 1998. Color discrimination in the White rhinoceros. AZA Annual Conference Proceedings 1997: 592-593.
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Poston, J. 1997. Recent experiences with Salmonella sp. at the Denver Zoological Gardens. AZA Regional Conference Proceedings 1996: 729-733.
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Hodgden, R. 1997. Enrichment studies of 1.1 Black rhinoceros (Diceros bicornis michaeli) at Zoo Atlanta. AZA Regional Conference Proceedings 1996: 262-268, 9 figures.
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Schaffer, N.E.; Berkeley, E.V. 1993. Serum, urinary and fecal steroid correlates of reproductive behavior in the Black rhinoceros (Diceros bicornis) abstract. Annual Conference Proceedings AAZPA/CAZPA 1992: 572.
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Papas, A.M.; Citino, S.B.; Cambre, R. 1990. Vitamin E: Considerations in practical animal feeding and case studies with elephants and rhinoceroses. Proceedings of the 8th Dr. Scholl Conference on the Nutrition of captive wild animals 1989: 59-68, 4 figures.
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Hodgden, R. 1989. Short-term separation and stress of mother and daughter Southern White rhinoceroses (Ceratotherium simum simum) at the North Carolina Zoological Park. AAZPA Regional Conference Proceedings 1988: 272-279, 5 figures.