APA (7th ed.) Citation

Post, P., Post, P., & Post, E. (2005). Emily Post's The etiquette advantage in business: Personal skills for professional success (2nd ed.). Collins Living.

Chicago Style (17th ed.) Citation

Post, Peggy, Peter Post, and Emily Post. Emily Post's The Etiquette Advantage in Business: Personal Skills for Professional Success. 2nd ed. [New York]: Collins Living, 2005.

MLA (9th ed.) Citation

Post, Peggy, et al. Emily Post's The Etiquette Advantage in Business: Personal Skills for Professional Success. 2nd ed. Collins Living, 2005.