Cita APA (7a ed.)
Nelson, P. E. (1990). Confidence in public speaking (4th ed.). Wm.C.Brown.
Cita Chicago Style (17a ed.)
Nelson, Paul Edward. Confidence in Public Speaking. 4th ed. Iowa: Wm.C.Brown, 1990.
Cita MLA (9a ed.)
Nelson, Paul Edward. Confidence in Public Speaking. 4th ed. Wm.C.Brown, 1990.
Precaución: Estas citas no son 100% exactas.