APA aipamena

Lucas, S. (2015). The art of public speaking (Twelfth edition.). McGraw-Hill Education.

Chicago Style aipamena

Lucas, Stephen. The Art of Public Speaking. Twelfth edition. New York, NY: McGraw-Hill Education, 2015.

MLA aipamena

Lucas, Stephen. The Art of Public Speaking. Twelfth edition. McGraw-Hill Education, 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.