Donovan, W. Graeme
Soil fertility management in sub-Saharan Africa / Graeme Donovan & Frank Casey - Washington, D.C. : World Bank (WB) , 1998 - vii, 60p. ; 28 cm. - World Bank technical paper, 408 0253-7494 ; .
Includes bibliographical references (p. [53]-60).
0821342363
Soil fertility--Management--Africa, Sub-Saharan
UN WB TP-408
Soil fertility management in sub-Saharan Africa / Graeme Donovan & Frank Casey - Washington, D.C. : World Bank (WB) , 1998 - vii, 60p. ; 28 cm. - World Bank technical paper, 408 0253-7494 ; .
Includes bibliographical references (p. [53]-60).
0821342363
Soil fertility--Management--Africa, Sub-Saharan
UN WB TP-408