APA (7th ed.) Citation

Ellis, H., & Ellis, H. (1942). Studies in the psychology of sex: By Havelock Ellis. Random.

Chicago Style (17th ed.) Citation

Ellis, Havelock, and Havelock Ellis. Studies in the Psychology of Sex: By Havelock Ellis. New York: Random, 1942.

MLA (8th ed.) Citation

Ellis, Havelock, and Havelock Ellis. Studies in the Psychology of Sex: By Havelock Ellis. Random, 1942.