Cita APA (7th ed.)
DeVito, J. A. (1987). The elements of public speaking (3rd ed.). Harper & Row.
Cita Chicago (17th ed.)
DeVito, Joseph A. The Elements of Public Speaking. 3rd ed. New York: Harper & Row, 1987.
Cita MLA (9th ed.)
DeVito, Joseph A. The Elements of Public Speaking. 3rd ed. Harper & Row, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.