Dyfyniad APA

Blackenship, J. (1972). Public speaking: A rhetorical perspective (2nd ed.). Prentice Hall.

Dyfyniad Arddull Chicago

Blackenship, Jane. Public Speaking: A Rhetorical Perspective. 2nd ed. Englewood Cliffs, N. J: Prentice Hall, 1972.

Dyfyniad MLA

Blackenship, Jane. Public Speaking: A Rhetorical Perspective. 2nd ed. Prentice Hall, 1972.

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