Ruben, B. D., Intrapersonal, Interpersonal and Mass Communication Processes in Individual and Multi-Individual Systems. In Intermedia:  Interpersonal Communication in a Media World, Second Edition  (G.  Gumpert and R. Cathcart, eds.), New York: Oxford University Press, 1983, 110-131. (C)

Intermedia: Interpersonal Communication in a Media World, Second Edition