Lua APA (7ú heag.)

Makay, J. J., & Fetzer, R. C. (1980). Business communication skills: A career Focus. D. Van Nostrand co..

Lua i Stíl Chicago (17ú heag.)

Makay, John J., agus Ronald C. Fetzer. Business Communication Skills: A Career Focus. New York: D. Van Nostrand co., 1980.

Lua MLA (9ú heag.)

Makay, John J., agus Ronald C. Fetzer. Business Communication Skills: A Career Focus. D. Van Nostrand co., 1980.

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