APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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