Bishop, C., & Osthelder, X. (2001). Sexualia: From prehistory to cyberspace / Clifford Bishop ; Xenia Osthelder. Könemann.
Lua i Stíl Chicago (17ú heag.)Bishop, Clifford, agus Xenia Osthelder. Sexualia: From Prehistory to Cyberspace / Clifford Bishop ; Xenia Osthelder. Köln: Könemann, 2001.
Lua MLA (8ú heag.)Bishop, Clifford, agus Xenia Osthelder. Sexualia: From Prehistory to Cyberspace / Clifford Bishop ; Xenia Osthelder. Könemann, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.