APA (7th ed.) Citation

Guffey, M. E. (1988). Essentials of business communication: A writing improvement program. PWS-Kent Pub. Co..

Chicago Style (17th ed.) Citation

Guffey, Mary Ellen. Essentials of Business Communication: A Writing Improvement Program. Boston, Mass.: PWS-Kent Pub. Co., 1988.

MLA (9th ed.) Citation

Guffey, Mary Ellen. Essentials of Business Communication: A Writing Improvement Program. PWS-Kent Pub. Co., 1988.