Steenhuijsen Piters, C. B. de Diversity of fields and farmers : explaining yield variations in northern Cameroon / C. B. de Steenhuijsen Piters. - Wageningen : University of Wageningen, 1995 - 227p. : ill. ; 23 cm Thesis (Ph D. Agric) - University of Wageningen, 1995 Includes bibliographical references (p. 199-216) ISBN: 9054853441 Subjects--Topical Terms: Yield variations -- CAmeroon. Agriculture -- Cameroon. Dewey Class. No.: 333.76