Donovan, W. Graeme. Soil fertility management in sub-Saharan Africa / Graeme Donovan and Frank Casey. - Washington, D.C. : World Bank, 1998. - vii, 60 p. ; 28 cm. - World Bank technical paper, 408 0253-7494 ; . - World Bank technical paper ; no. 408. . Includes bibliographical references (p. [53]-60). ISBN: 0821342363 LCCN: 98024350 Subjects--Topical Terms: Soil fertility--Management.--Africa, Sub-Saharan LC Class. No.: S599.5.A1 / D65 1998 Dewey Class. No.: 631.422096 / WOS 1998