Curson, H.H.; Epstein, H.; Union of South Africa. Dept. of Agriculture; Du Toit, P.J.
(Union of South Africa : Dept. of Agriculture, 1934)
Assuming that the three foundation stocks of African cattle are the Hamitic Longhorn, Brachyceros, and Longhorned Zebu types, it is possible to differentiate between them (a) on account of their conformation, and (b) because ...