APA (7th ed.) Citation

Geffner, A. B. (1999). Business letters the easy way (2nd ed.). Baron's.

Chicago Style (17th ed.) Citation

Geffner, Andrea B. Business Letters the Easy Way. 2nd ed. New York: Baron's, 1999.

MLA (9th ed.) Citation

Geffner, Andrea B. Business Letters the Easy Way. 2nd ed. Baron's, 1999.