African agrarian systems : studies presented and discussed / edited by Daniel Biebuyck - London : Oxford University Press , 1963 - xiii, 407p. : ill. ; 23 cm. - Published for the International African Institute . Includes bibliographical references and index. Subjects--Topical Terms: AgricultureAfrica South of SaharaLand tenure Dewey Class. No.: 630.96 / BIE