Guffey, M. E. (2010). Essentials of business communication 2nd ed. Cengage Learning.
Cita Chicago Style (17a ed.)Guffey, Mary Ellen. Essentials of Business Communication 2nd Ed. Cengage Learning, 2010.
Cita MLA (8a ed.)Guffey, Mary Ellen. Essentials of Business Communication 2nd Ed. Cengage Learning, 2010.
Precaución: Estas citas no son 100% exactas.