APA (7th ed.) Citation

Post, E. L. (1991). Emily Post's complete book of wedding etiquette (Rev. ed.). HarperCollins Pub.

Chicago Style (17th ed.) Citation

Post, Elizabeth L. Emily Post's Complete Book of Wedding Etiquette. Rev. ed. New York: HarperCollins Pub, 1991.

MLA (9th ed.) Citation

Post, Elizabeth L. Emily Post's Complete Book of Wedding Etiquette. Rev. ed. HarperCollins Pub, 1991.