Farming Systems Research - January 1979-December 1991-264 Citations from AGRICOLA. Published: 1992 Total Pages: 49 Get eBook
Farming Systems Research, January 1979 - December 1991 Jane Potter Gates Published: 1992 Total Pages: 62 Get eBook
Bibliographic Series, Current Titles Listing National Agricultural Library (U.S.). Public Services Division Published: 1993 Total Pages: 36 Get eBook