Indian Journal of Extension Education. v.17, 1981
Singh, K.N., ed.
Indian Journal of Extension Education. v.17, 1981 edited by K.N.Singh - New Delhi Indian Society of Extension Education 1981 - v.17, varies p.; 24cm.
Indian Journal of Extension Education. v.17, 1981 edited by K.N.Singh - New Delhi Indian Society of Extension Education 1981 - v.17, varies p.; 24cm.