Todd, N. E., & Roth, V. L. (1996). Origin and radiation of the Elephantidae. In J. Shoshani & P. Tassy (Eds.), The Proboscidea: Evolution and Palaeoecology of Elephants and their Relatives (pp. 193–202). Oxford University Press.

Todd, N. E., and V. L. Roth. “Origin and radiation of the Elephantidae.” In The Proboscidea: Evolution and Palaeoecology of Elephants and Their Relatives, edited by J. Shoshani and P. Tassy, 193–202. Oxford University Press, 1996.

Todd NE, Roth VL. Origin and radiation of the Elephantidae. In: Shoshani J, Tassy P, editors. The Proboscidea: Evolution and Palaeoecology of Elephants and their Relatives. Oxford University Press; 1996. p. 193–202.

Todd, N. E., and V. L. Roth. “Origin and radiation of the Elephantidae.” The Proboscidea: Evolution and Palaeoecology of Elephants and Their Relatives, edited by J. Shoshani and P. Tassy, Oxford University Press, 1996, pp. 193–202.

Todd NE, Roth VL. Origin and radiation of the Elephantidae. In: Shoshani J, Tassy P, editors. The Proboscidea: Evolution and Palaeoecology of Elephants and their Relatives. Oxford University Press; 1996. p. 193–202.