G.L. Ray Management development for farmers - New Delhi Mittal publications 1991 - 127p G.L. Ray & S.P. Bora: Management development for farmers. New Delhi. Mittal publications, 1991. 81-7099-290-7--(630.715RAY) ENGLISH ISBN: 81-7099-290-7 Dewey Class. No.: 630.715 / RAY