APA

(1937). Encyclopaedia of sexual knowledge. New York: Eugenics Pub.

Chicago

1937. Encyclopaedia of sexual knowledge. New York: Eugenics Pub.

Harvard

(1937). Encyclopaedia of sexual knowledge. New York: Eugenics Pub.

MLA

Encyclopaedia of sexual knowledge. New York: Eugenics Pub. 1937.