Nelson, P. E. (1990). Confidence in public speaking (4th ed.). Wm.C.Brown.
Style de citation Chicago (17e éd.)Nelson, Paul Edward. Confidence in Public Speaking. 4th ed. Iowa: Wm.C.Brown, 1990.
Style de citation MLA (9e éd.)Nelson, Paul Edward. Confidence in Public Speaking. 4th ed. Wm.C.Brown, 1990.
Attention : ces citations peuvent ne pas être correctes à 100%.