APA (7th ed.) Citation

Frailey, L. E., Mamchak, S. P., & Mamchak, S. R. (1989). Handbook of business letters (3rd ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Frailey, L. E., Susan P. Mamchak, and Steven R. Mamchak. Handbook of Business Letters. 3rd ed. Englewood Cliffs, N.J.: Prentice Hall, 1989.

MLA (8th ed.) Citation

Frailey, L. E., et al. Handbook of Business Letters. 3rd ed. Prentice Hall, 1989.