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Proceedings of the 9th Conference of the International Soil Tillage Research Organization, ISTRO, Osijek, 1982

International Soil Tillage Research Organization. Conference

出版	Sveučilišna Naklada Liber, 1982
URL	http://books.google.com.hk/books?id=T-nIzQEACAAJ&hl=&source=gbs_api