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1Effect of ecological agriculture project construction on the regional environment improvement Effect of ecological agriculture project construction on the regional environment improvementby Han Yuzhen, FAO, Rome (Italy). Research and Technology Development Div. eng, Yang Jun, Liu Jianbo (Jilin Agricultural Environmental Protection, Changchun (China). Monitoring Station), Wang Changwen, Li Taihao, Lu Nan (ed.), Best, G. (ed.), Carvalho Neto, C.C. de (ed.)
Published 1994Texto bibliotecaFAO IT