Gregory, H. (2005). Public Speaking for College & Career (7th edición.). McGraw-Hill Companies, Inc.
Cita Chicago Style (17a ed.)Gregory, Hamilton. Public Speaking for College & Career. 7th edición. New York, N.Y: McGraw-Hill Companies, Inc, 2005.
Cita MLA (9a ed.)Gregory, Hamilton. Public Speaking for College & Career. 7th edición. McGraw-Hill Companies, Inc, 2005.
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