Coppens, Yves, Maglio, Vincent J., Madden, Cary T. and Beden, Michel. "XVII: Proboscidea".
Evolution of African Mammals, edited by Vincent J. Maglio and H. B. S. Cooke, Cambridge, MA and London, England: Harvard University Press, 2013, pp. 336-367.
https://doi.org/10.4159/harvard.9780674431263.c18
Coppens, Y., Maglio, V., Madden, C. & Beden, M. (2013). XVII: Proboscidea. In V. Maglio & H. Cooke (Ed.),
Evolution of African Mammals (pp. 336-367). Cambridge, MA and London, England: Harvard University Press.
https://doi.org/10.4159/harvard.9780674431263.c18
Coppens, Y., Maglio, V., Madden, C. and Beden, M. 2013. XVII: Proboscidea. In: Maglio, V. and Cooke, H. ed.
Evolution of African Mammals. Cambridge, MA and London, England: Harvard University Press, pp. 336-367.
https://doi.org/10.4159/harvard.9780674431263.c18
Coppens, Yves, Maglio, Vincent J., Madden, Cary T. and Beden, Michel. "XVII: Proboscidea" In
Evolution of African Mammals edited by Vincent J. Maglio and H. B. S. Cooke, 336-367. Cambridge, MA and London, England: Harvard University Press, 2013.
https://doi.org/10.4159/harvard.9780674431263.c18