Cita APA (7th ed.)

Ellis, H., & Ellis, H. (1921). Sudies in the psychology of sex: By Ellis Havelock (3. Auflage, revised and enlarged.). Davis.

Cita Chicago (17th ed.)

Ellis, Havelock, i Havelock Ellis. Sudies in the Psychology of Sex: By Ellis Havelock. 3. Auflage, revised and enlarged. Philadelphia: Davis, 1921.

Cita MLA (8th ed.)

Ellis, Havelock, i Havelock Ellis. Sudies in the Psychology of Sex: By Ellis Havelock. 3. Auflage, revised and enlarged. Davis, 1921.