Style de citation APA (7e éd.)

Suttle, M., & Vest, L. J. (2009). Who's your Gladys?: How to turn even the most difficult customer into your biggest fan. AMACOM.

Style de citation Chicago (17e éd.)

Suttle, Marilyn, et Lori Jo Vest. Who's Your Gladys?: How to Turn Even the Most Difficult Customer into Your Biggest Fan. New York: AMACOM, 2009.

Style de citation MLA (8e éd.)

Suttle, Marilyn, et Lori Jo Vest. Who's Your Gladys?: How to Turn Even the Most Difficult Customer into Your Biggest Fan. AMACOM, 2009.