Indigenous Integrated Farming Systems in the Sahel (World Bank Technical Paper No. 179). By M. Spiers and O Olsen. Washington DC: The World Bank† (1992), pp. £7.15, US$7.95. ISBN 0-8213-2180-3.

1994 ◽  
Vol 30 (02) ◽  
pp. 261
Author(s):  
J. K. Coulter
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