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1by Chu Van Thinh (State Committee for Planning, Hanoi (Viet Nam). Central Inst. for Zoning and Planning), FAO, Rome (Italy). Agriculture Dept. eng, National Workshop on Investigations of Lands with Declining and Stagnating Productivity eng 12-23 Oct 1985 Hanoi (Viet Nam), Ministry of Agriculture, Hanoi (Viet Nam). National Inst. for Agricultural Planning and Projection eng
Published 1986Texto bibliotecaFAO IT