APA način citiranja (7. izdanje)

MM. (1991). Essentials Of Business Communication / Mary Ellen Guffey. PWS-Kent Publishing.

Čikaški stil citiranja (17. izdanje)

MM. Essentials Of Business Communication / Mary Ellen Guffey. PWS-Kent Publishing, 1991.

MLA način citiranja (8. izdanje)

MM. Essentials Of Business Communication / Mary Ellen Guffey. PWS-Kent Publishing, 1991.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.