Lua APA (7ú heag.)
Erich, J., & Grant, J. (1999). Friction 2: Best gay erotic fiction. Alyson Books.
Lua i Stíl Chicago (17ú heag.)
Erich, John, agus Jesse Grant. Friction 2: Best Gay Erotic Fiction. Los Angeles: Alyson Books, 1999.
Lua MLA (9ú heag.)
Erich, John, agus Jesse Grant. Friction 2: Best Gay Erotic Fiction. Alyson Books, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.