Kroll, G. (1998). Friction: Best gay erotic fiction / edited by Gerry Kroll (1. Auflage.). Alyson.
Lua i Stíl Chicago (17ú heag.)Kroll, Gerry. Friction: Best Gay Erotic Fiction / Edited by Gerry Kroll. 1. Auflage. Los Angeles: Alyson, 1998.
Lua MLA (8ú heag.)Kroll, Gerry. Friction: Best Gay Erotic Fiction / Edited by Gerry Kroll. 1. Auflage. Alyson, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.