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Robinson, P.T.; Robinson, T.J. 2009. History of the D.b. michaeli. www.serengeti.org: p. 1-2.
Ullrey, D.E.; Ku, P.K.; Whetter, P.A.; Robinson, P.T. 1989. Black rhinoceros (Diceros bicornis) erythrocyte stability. Proceedings of the American Association of Zoo Veterinarians 1989: 19-22, table 1.
Ott, J.E.; Macdonald, S.E.; Robinson, P.T.; Wright, F.H. 1982. Ulcerative stomatitis in a black rhinoceros (Diceros bicornis). Proceedings of the American Association of Zoo Veterinarians 1982: 68-71, tables 1-2.
Robinson, P.T. 1882. Noah's ark, or, "Mornings in the zoo," being a contribution to the study of unnatural history. London, S. Low, Marston, Searle, & Rivington.






