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Self-Assessing Good Practices and Scaling-up Strategies in Sustainable Agriculture

Christian BergMirco GaulRomy LehnsAstrid MeyerFranziska MohauptMiriam Schröder

出版	Humboldt-Universität zu Berlin, 2004
URL	http://books.google.com.hk/books?id=un-rzQEACAAJ&hl=&source=gbs_api