Style de citation APA (7e éd.)

Gerson, R. F. (1998). Beyond customer service, revised (Rev. ed.). Crisp Publications.

Style de citation Chicago (17e éd.)

Gerson, Richard F. Beyond Customer Service, Revised. Rev. ed. Menlo Park, Calif.: Crisp Publications, 1998.

Style de citation MLA (9e éd.)

Gerson, Richard F. Beyond Customer Service, Revised. Rev. ed. Crisp Publications, 1998.