Nelson, P. E., & Paul E. Nelson; Scott Titsworth; Judy C. Pearson. (2009). Speak: Public speaking for contemporary life. Boston: McGraw-Hill Higher Education.
Παραπομπή Chicago StyleNelson, Paul E., και Paul E. Nelson; Scott Titsworth; Judy C. Pearson. Speak: Public Speaking for Contemporary Life. Boston: McGraw-Hill Higher Education, 2009.
Παραπομπή MLANelson, Paul E., και Paul E. Nelson; Scott Titsworth; Judy C. Pearson. Speak: Public Speaking for Contemporary Life. Boston: McGraw-Hill Higher Education, 2009.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.