Tubbs, S. L. (2004). Human communication ed.9. McGraw-Hill.
Chicago Style aipamenaTubbs, Stewart L. Human Communication Ed.9. McGraw-Hill, 2004.
MLA aipamenaTubbs, Stewart L. Human Communication Ed.9. McGraw-Hill, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.