Nowak, R.M. 1999. Walker’s Mammals of the world, 6th edition. Baltimore and London, The John Hopkins University Press. vol. 2.
Nowak, R.M. 1991. Walker’s Mammals of the world, 5th edition. Baltimore and London, The John Hopkins University Press. vol. 2.
Walker, E.P.; Nowak, R.M. 1991. Mammals of the world, 5th edition, vol. 2. Baltimore & London, John Hopkins Press: pp. 1303-1304,1322-1333, 11 plates, 1 fig.
Nowak, R.M.; Paradiso, J.L. 1983. Walker’s Mammals of the world, 4th edition. Baltimore and London, The John Hopkins University Press. vol. 2.






