Cita APA (7th ed.)
Lucas, S. (2001). The art of public speaking (7th ed.). McGraw Hill.
Cita Chicago (17th ed.)
Lucas, Stephen. The Art of Public Speaking. 7th ed. Boston, Mass.: McGraw Hill, 2001.
Cita MLA (9th ed.)
Lucas, Stephen. The Art of Public Speaking. 7th ed. McGraw Hill, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.