Williamson, G. An introduction to animal husbandry int he tropics - (2 ed.) - London : Longman, (1971) - 447 p. : ilus. ; láms. - Tropical agriculture series . - Tropical agriculture series . LCCN: 54839 Subjects--Topical Terms: Ganadería--Trópicos. Dewey Class. No.: 636.08 / W55i 1971