APA (7th ed.) Citation

Post, E. (1955). Etiquette: The blue book of social usage. Funk & Wagnalls.

Chicago Style (17th ed.) Citation

Post, Emily. Etiquette: The Blue Book of Social Usage. New York: Funk & Wagnalls, 1955.

MLA (9th ed.) Citation

Post, Emily. Etiquette: The Blue Book of Social Usage. Funk & Wagnalls, 1955.