Cita APA (7th ed.)
Keene, J. (2018). Understanding human sexuality. Willford Press.
Cita Chicago (17th ed.)
Keene, Joseph. Understanding Human Sexuality. Queens Blvd: Willford Press, 2018.
Cita MLA (9th ed.)
Keene, Joseph. Understanding Human Sexuality. Willford Press, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.