APA (7th ed.) Citation

Wiener, S., & Wiener, S. (1978). Clear and simple guide to business letter writing. Monarch.

Chicago Style (17th ed.) Citation

Wiener, Solomon, and Solomon Wiener. Clear and Simple Guide to Business Letter Writing. New York: Monarch, 1978.

MLA (9th ed.) Citation

Wiener, Solomon, and Solomon Wiener. Clear and Simple Guide to Business Letter Writing. Monarch, 1978.

Warning: These citations may not always be 100% accurate.