APA aipamena

Nelson, P. E., Titsworth, S., & Pearson, J. C. (2013). iSpeak: Improve your speech credibility (Fifth edition.). McGraw-Hill.

Chicago Style aipamena

Nelson, Paul E., Scott Titsworth, and Judy C. Pearson. ISpeak: Improve Your Speech Credibility. Fifth edition. New York, NY: McGraw-Hill, 2013.

MLA aipamena

Nelson, Paul E., et al. ISpeak: Improve Your Speech Credibility. Fifth edition. McGraw-Hill, 2013.