Cita APA (7a ed.)

Langford, B. Y. (2016). The etiquette edge: Modern manners for business success (Second edition.). AMACOM/American Management Association.

Cita Chicago Style (17a ed.)

Langford, Beverly Y. The Etiquette Edge: Modern Manners for Business Success. Second edition. New York: AMACOM/American Management Association, 2016.

Cita MLA (8a ed.)

Langford, Beverly Y. The Etiquette Edge: Modern Manners for Business Success. Second edition. AMACOM/American Management Association, 2016.