APA (7th ed.) Citation

Sanger, M. (1920). What every girl should know. Published by United Sales Co..

Chicago Style (17th ed.) Citation

Sanger, Margaret. What Every Girl Should Know. Springfield, Ill.: Published by United Sales Co., 1920.

MLA (9th ed.) Citation

Sanger, Margaret. What Every Girl Should Know. Published by United Sales Co., 1920.