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		Conservation farming on steep lands / W.C. Moldenhauer and N.W. Hudson, editors. by Hudson, Norman Moldenhauer, W. C Soil and Water Conservation Society (U.S.) World Association of Soil and Water Conservation Material type: Text; Format: print ; Literary form: Not fiction Publication details: Ankeny, Iowa : Soil and Water Conservation Society : World Association of Soil and Water Conservation, c1988 Availability: Items available for loan: TUP Manila Library (1)Call number: S 622.2 C66 1988. Place hold Add to cart (remove)
		Sustainable agricultural systems / edited by Clive A. Edwards ... [et al.]. by Edwards, C. A. (Clive Arthur), 1925- United States. Agency for International Development International Conference on Sustainable Agricultural Systems (1988 : Ohio State University) Material type: Text; Format: print ; Literary form: Not fiction Publication details: Ankeny, Iowa : Soil and Water Conservation Society, c1990 Availability: Items available for loan: TUP Manila Library (1)Call number: S 494.5 S86 1990. Place hold Add to cart (remove)

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