King, E., & Patton, C. (1993). Safety in numbers: Safer sex and gay men (1. Auflage.). Cassell.
Lua i Stíl Chicago (17ú heag.)King, Edward, agus Cindy Patton. Safety in Numbers: Safer Sex and Gay Men. 1. Auflage. London: Cassell, 1993.
Lua MLA (8ú heag.)King, Edward, agus Cindy Patton. Safety in Numbers: Safer Sex and Gay Men. 1. Auflage. Cassell, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.