Cita APA (7th ed.)
Littlejohn, S. W. (1989). Theories of human communication (3rd.ed.). Wadsworth.
Cita Chicago (17th ed.)
Littlejohn, Stephen W. Theories of Human Communication. 3rd.ed. Belmont: Wadsworth, 1989.
Cita MLA (9th ed.)
Littlejohn, Stephen W. Theories of Human Communication. 3rd.ed. Wadsworth, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.