Agricultural research in Southern Africa : a framework for action / Andrew Spurling... [et al.]
Agricultural research in Southern Africa : a framework for action / Andrew Spurling... [et al.]
. - Washington : World Bank, cop. 1992
. - XV, 61 p., [2] f. mapa color. dobr. 28 cm
. - (World Bank discussion papers, Africa Technical Department series; 184.)
0-8213-2282-6 (Brochado)
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