Indian Journal of Extension Education. v.10, 1974
Singh, K.N., ed.
Indian Journal of Extension Education. v.10, 1974 edited by K.N.Singh - New Delhi Indian Society of Extension Education 1974 - v.10, varies p.; 24cm.
Indian Journal of Extension Education. v.10, 1974 edited by K.N.Singh - New Delhi Indian Society of Extension Education 1974 - v.10, varies p.; 24cm.