APA (7th ed.) Citation

Ellis, H. (1933). Psychology of sex: A manual for students. Emerson Books.

Chicago Style (17th ed.) Citation

Ellis, Havelock. Psychology of Sex: A Manual for Students. New York: Emerson Books, 1933.

MLA (9th ed.) Citation

Ellis, Havelock. Psychology of Sex: A Manual for Students. Emerson Books, 1933.