Thomas, W.D. 1987. The importance of maintaining genetic diversity and the role of captive breeding. In: Biological diversity: Prospects and problems. Hearings before the Subcommittee on Natural resources [etc]. 100th congress, first session. pp. 119-145.
Thomas, W.D.; Dee, M. 1982. The rhinoceros of the world. Zoo View, Los Angeles 16 (3): 4-9, figs. 1-9.
Thomas, W.D.; Dee, M. 1982. The rhino in captivity: the Los Angeles zoo story. Zoo View, Los Angeles 16 (3): 10-13, figs. 1-8.






