APA aipamena

Không rõ. (1976). Principles of Communications. NOTNXB.

Chicago Style aipamena

Không rõ. Principles of Communications. NOTNXB, 1976.

MLA aipamena

Không rõ. Principles of Communications. NOTNXB, 1976.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.