APA aipamena

Guffey, M. E. (2010). Essentials of business communication 2nd ed. Cengage Learning.

Chicago Style aipamena

Guffey, Mary Ellen. Essentials of Business Communication 2nd Ed. Cengage Learning, 2010.

MLA aipamena

Guffey, Mary Ellen. Essentials of Business Communication 2nd Ed. Cengage Learning, 2010.

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