Feder, Gershon, 1947- The training and visit extension system : an analysis of operations and effects / Gershon Feder, Roger H. Slade, Anant K. Sundaram - Washington : World Bank, 1985 - vii, 36 p. ; 28 cm. - World Bank staff working papers ; no. 719 . ISBN: 0821304976 : USD 5.00 Subjects--Topical Terms: Agricultural extension work--India Dewey Class. No.: 630.7150954