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1. Research and extension in agricultural development /

by Evenson, Robert E.

Publisher: California : International Center for Economic Growth, 1991Availability: No items available

2. Basic elements of the farming systems approach to research and extension

by Department of Agriculture.

Publisher: Quezon City : Bureau of Agricultural Research, 1990Availability: Items available for loan: [Call number: 07.03.02 DA DBA 1990] (1).

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