Speech Communication Association & Speech Communication Association. Commission on Freedom of Speech. Free speech yearbook. Speech Communication Association.
Cita Chicago (17th ed.)Speech Communication Association i Speech Communication Association. Commission on Freedom of Speech. Free Speech Yearbook. Falls Church, Va.: Speech Communication Association.
Cita MLA (9th ed.)Speech Communication Association i Speech Communication Association. Commission on Freedom of Speech. Free Speech Yearbook. Speech Communication Association.
Atenció: Aquestes cites poden no estar 100% correctes.