APA (7th ed.) Citation

Campbell, B. J., & Vass, B. L. 1. . . . j. a. (1925). Essentials of business English. Business English publishing company.

Chicago Style (17th ed.) Citation

Campbell, Benjamin John, and Bruce Lafayette 1881- joint author Vass. Essentials of Business English. Jackson, Mich: Business English publishing company, 1925.

MLA (9th ed.) Citation

Campbell, Benjamin John, and Bruce Lafayette 1881- joint author Vass. Essentials of Business English. Business English publishing company, 1925.