APA (7th ed.) Citation

Post, E. L. (1991). Emily Post on business etiquette (2. ed.). Harper Perennial.

Chicago Style (17th ed.) Citation

Post, Elizabeth L. Emily Post on Business Etiquette. 2. ed. New York: Harper Perennial, 1991.

MLA (9th ed.) Citation

Post, Elizabeth L. Emily Post on Business Etiquette. 2. ed. Harper Perennial, 1991.