APA (7th ed.) Citation

Post, E. L., & Post, E. (1982). Emily Post's complete book of wedding etiquette. Harper & Row.

Chicago Style (17th ed.) Citation

Post, Elizabeth L., and Emily Post. Emily Post's Complete Book of Wedding Etiquette. New York: Harper & Row, 1982.

MLA (9th ed.) Citation

Post, Elizabeth L., and Emily Post. Emily Post's Complete Book of Wedding Etiquette. Harper & Row, 1982.