Donovan,W. Graeme.
Soil fertility management in Sub-Saharan Africa /
Graeme, Donovan, Frank Casey.
- Washington, DC : World Bank, 1998.
- vii, 60 p. ; 28 cm.
Includes bibliographical references.
Open access.
0821342363
9824350
Soil fertility--Africa, Sub-Saharan--Management.