Cernea Michael M System for monitoring and evaluating agricultural extension projects Cernea Michael M; Tepping Benjamin J - Washington DC World bank USA 1977 - vi; 115p. Bib p 113-15. cm. - "World bank staff working paper, 272." . Standard No.: 96297 Source: Reference Collections Subjects--Topical Terms: Agriculture Industries-prices Dewey Class. No.: "X9(J):77.1.N7, L7/UN"