Survival : Man and his evironment - Tài liệu nông nghiệp 48

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• Lazenby, Alec Australian field crops. Volume 1
• International programs in Thailand higher education institations
• Cox, S.W.R Mieroelectronics in agriculture and horticulture
• Hagan, Robert M Irrigation of agricultural lands
• Asian pacific economie literature. volume 14
• Survival : Man and his evironment
• Tasmanian weed handbook
• Report on the red river delta Gathering of Asian farmers.
• Bowes, Michael.D Multiple-use management.The Economics of publie forestlands
• Roger, Sedjo A The long-term adequacy of world timber supply