Cita APA (7th ed.)
Erich, J., & Grant, J. (1999). Friction 2: Best gay erotic fiction. Alyson Books.
Cita Chicago (17th ed.)
Erich, John, i Jesse Grant. Friction 2: Best Gay Erotic Fiction. Los Angeles: Alyson Books, 1999.
Cita MLA (9th ed.)
Erich, John, i Jesse Grant. Friction 2: Best Gay Erotic Fiction. Alyson Books, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.