Gordon, S., & Libby, R. W. (1976). Sexuality today and tomorrow: Contemporary issues in human sexuality. Duxbury.
Chicago-čujuhus (17. p.)Gordon, Sol, juo Roger W. Libby. Sexuality Today and Tomorrow: Contemporary Issues in Human Sexuality. California: Duxbury, 1976.
MLA-čujuhus (9. p.)Gordon, Sol, juo Roger W. Libby. Sexuality Today and Tomorrow: Contemporary Issues in Human Sexuality. Duxbury, 1976.
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