284461 Koah, A. (1995). Speaking with a purpose. Boston, Mass. : Allyn & Bacon.
Cita Chicago Style (17a ed.)284461 Koah, Arthur. Speaking with a Purpose. Boston, Mass. : Allyn & Bacon, 1995.
Cita MLA (9a ed.)284461 Koah, Arthur. Speaking with a Purpose. Boston, Mass. : Allyn & Bacon, 1995.
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