APA (7th ed.) Citation

Barry, R. E. (1993). Business English for the '90s (2nd ed.). Regents/Prentice Hall.

Chicago Style (17th ed.) Citation

Barry, Robert E. Business English for the '90s. 2nd ed. Englewood Cliffs, NJ: Regents/Prentice Hall, 1993.

MLA (9th ed.) Citation

Barry, Robert E. Business English for the '90s. 2nd ed. Regents/Prentice Hall, 1993.