Lipton.M, Longhurst.R

Modern varieties international agricultural research and the poor Michael Lipton and Richard Longhurst - Washington The world bank 1985 - xi,139p

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Food crops-varieties-economic aspect developing countries --Aricultural innovations--developing countries --Poor-developing countries
Farm size of developing counries--Food supply developing countries--Poor-developing countries nutrition

SB176.D44.L57 1985