Introduction to animal husbandry in the tropics. Ed 3 - G. Williamson; W.J.A. Payne (London English Language Book Society & Longmans, 1978)
G. Williamson & W.J.A. Payne: Introduction to animal husbandry in the tropics. Ed 3. (3rd Edition.) London. English Language Book Society & Longmans, 1978. 0-582-46068-9--(636WIL)
ENGLISH