Cita APA (7th ed.)

Gregory, H. (1999). Public speaking for college and career (5th.ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Gregory, Hamilton. Public Speaking for College and Career. 5th.ed. Boston: McGraw-Hill, 1999.

Cita MLA (9th ed.)

Gregory, Hamilton. Public Speaking for College and Career. 5th.ed. McGraw-Hill, 1999.