Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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