APA aipamena

Stephen E. Lucas. (2007). The art of public speaking. Boston: McGraw-Hill.

Chicago Style aipamena

Stephen E. Lucas. The Art of Public Speaking. Boston: McGraw-Hill, 2007.

MLA aipamena

Stephen E. Lucas. The Art of Public Speaking. Boston: McGraw-Hill, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.