Conservation Farming on Steep Lands, Edited by W.C. Moldenhauer & N.W. Hudson. World Association of Soil and Water Conservation & Soil and Water Conservation Society, Ankeny, Iowa, USA: viii + 296 pp., illustr., 23.8 × 16 × 2.5 cm, US $22, 1988.
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1990 ◽
Vol 5
(3)
◽
pp. 140-141
◽
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