Rao, Y. V. Lakshmana. The practice of mass communication: some lessons from research, by Y. V. Lakshmana Rao. - [Paris] Unesco [1972] - 52 p. 27 cm. "COM/72.XVII/66.A." ISBN: 923100946X Subjects--Topical Terms: Communication.Mass media. Dewey Class. No.: 301.243 / RAO N72P