APA Zitierstil

Guffey, M. E. (1999). Business English (6th ed.). Cincinnati, Ohio: South-Western College.

Chicago Zitierstil

Guffey, Mary Ellen. Business English. 6th ed. Cincinnati, Ohio: South-Western College, 1999.

MLA Zitierstil

Guffey, Mary Ellen. Business English. 6th ed. Cincinnati, Ohio: South-Western College, 1999.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.