1. Raising and sustaining productivity of small-holder farming systems in the tropics a hand book of sustainable agricultursl development   Publication: Alkmar Agbe Pub 1990 . 738p:ill.,charts, photos, graphs , includes bibliographical references Date:1990 Availability: Copies available: Turkeyen Campus Social Sciences [Ref HD1417 B43] (1), Actions: Add to cart No cover image available No cover image available
2. Raising and Sustaining Productivity of smallholder farming systems in the tropics /   Publication: Holland : AgBe Pub., 1990 . xvi, 738p. : Date:1990 Availability: Copies available: Turkeyen Campus Social Sciences [Ref. HD1417 B43] (1), Actions: Add to cart

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