Wilson, R. Trevor. Livestock production systems / R. Trevor Wilson. - 1st ed. - London : Wageningen, The Netherlands : Macmillan Education, CTA, 1995. - x, 141 p. : ill. - The tropical agriculturalist . ISBN: 0333600126 Subjects--Topical Terms: Livestock--Tropics.Domestic animals--Tropics.Agriculture--Tropics.