01073nam a2200241 a 4500 2558416 100705s1994 bs a b 000 0 eng d 94982381 DLC DLC BD-DhAAL 631.5/8/0720676 20 Farming systems research approach : a primer for eastern and southern Africa / D.W. Norman ... [et al.]. Gaborone, Botswana : Farming Systems Programme, 1994. xi, 148 p. : ill. ; 30 cm. Includes bibliographical references (p. 136-142). 00011544 Agricultural systems Research Africa, Eastern. Agricultural systems Research Africa, Eastern. Agricultural systems Research Botswana. Norman, D. W. (David W.) Farming Systems Programme (Botswana) Ayesha Abed Library General shelf 9176 9176 0 0 ddc 0 631_580720676000000_FAR_1994 0 11551 BRACUL BRACUL GEN 2010-07-05 1 5 631.580720676 FAR 3010011544 2022-12-22 2022-11-30 1 2010-07-05 BK