Hall-Martin, A.; Merwe, N.J. van der; Lee-Thorp, J.; Armstrong, R.A.; Mehl, C.H.; Struben, S.; Tykot, R. 1993. Determination of species and geographic origin of isotopic analysis and its possible application to trade control. In: Ryder, O.A. 1993. Rhinoceros biology and conservation: Proceedings of an international conference, San Diego, U.S.A. San Diego, Zoological Society. pp. 123-135, figs. 1-7, tables 1-4.






