Replenishing soil fertility in Africa : proceedings of an interna tional sysmposium cosponsored by Divisions A-6 (International Agronomy) and S-4 (Soil Fertility and Plant Nutrition), and the International Ce nter for Research in Agroforestry, held at the 88th Annual Meetings of the American Society of Agronomy and the Soil Science Society of Americ a, Indianapolis, Indiana, 6 November 1996 /
editors, Roland J. Bures h, Pedro A. Sanchez, and Frank Calhoun.
- Madison, Wis. : Soil Science Society of America, 1997.
- xix, 251 p. : ill., maps ; 23 cm.
- SSSA special publication ; no. 51 .