APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Guffey, Mary Ellen. Business English. 6th ed. South-Western College Pub, 1999.