Southgate, Douglas DeWitt, The world food economy / Douglas Southgate, Douglas H. Graham, and Luther Tweeten. - Malden, MA Blackwell Pub. 2007 - xiii, 402 p. : ill.; Pbk. ISBN: 9781405105972 Subjects--Topical Terms: Agriculture -- Economic aspectsFood supply. LC Class. No.: HD1415 / .S6 2007