Cita APA (7a ed.)

Robinson, W. J. (1921). Sexual problems of today (9th ed.). Truth Pub. Co..

Cita Chicago Style (17a ed.)

Robinson, William Josephus. Sexual Problems of Today. 9th ed. New York: Truth Pub. Co., 1921.

Cita MLA (8a ed.)

Robinson, William Josephus. Sexual Problems of Today. 9th ed. Truth Pub. Co., 1921.