APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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