APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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