Dyfyniad APA

Nelson, P. E. (1990). Confidence in public speaking (4th ed.). Wm.C.Brown.

Dyfyniad Arddull Chicago

Nelson, Paul Edward. Confidence in Public Speaking. 4th ed. Iowa: Wm.C.Brown, 1990.

Dyfyniad MLA

Nelson, Paul Edward. Confidence in Public Speaking. 4th ed. Wm.C.Brown, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.