Gibson, J. W. (1971). A reader in speech communication. McGraw - hill.
Lua i Stíl Chicago (17ú heag.)Gibson, James W. A Reader in Speech Communication. New York: McGraw - hill, 1971.
Lua MLA (9ú heag.)Gibson, James W. A Reader in Speech Communication. McGraw - hill, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.