Richstad, J., & Harms, L. S. (1973). World communication: Popultion communication, communication technology, communication in the future. East-West Center.
Cita Chicago (17th ed.)Richstad, Jim, i Leroy Stanley Harms. World Communication: Popultion Communication, Communication Technology, Communication in the Future. Honolulu: East-West Center, 1973.
Cita MLA (9th ed.)Richstad, Jim, i Leroy Stanley Harms. World Communication: Popultion Communication, Communication Technology, Communication in the Future. East-West Center, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.