Krizan, A. B. (1999). Business communication (4th ed.). South-Western College.
Citace podle Chicago (17th ed.)Krizan, A.C. Buddy. Business Communication. 4th ed. Cincinnati, Ohio: South-Western College, 1999.
Citace podle MLA (9th ed.)Krizan, A.C. Buddy. Business Communication. 4th ed. South-Western College, 1999.
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