Cita APA (7th ed.)
Williams, f. (1984). The new communications. Wadsworth.
Cita Chicago (17th ed.)
Williams, frederick. The New Communications. California: Wadsworth, 1984.
Cita MLA (9th ed.)
Williams, frederick. The New Communications. Wadsworth, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.