Cita APA (7th ed.)
Penner, C., & Penner, J. (2004). Sex 101: Getting your sex life off to a great start. W Publishing Group.
Cita Chicago (17th ed.)
Penner, Cliford, i Joyce Penner. Sex 101: Getting Your Sex Life off to a Great Start. Tennessee: W Publishing Group, 2004.
Cita MLA (9th ed.)
Penner, Cliford, i Joyce Penner. Sex 101: Getting Your Sex Life off to a Great Start. W Publishing Group, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.