APA (7th ed.) Zitazioa
Spencer, C. (1995). Homosexuality: A history.
Chicago Style (17th ed.) Zitazioa
Spencer, Colin. Homosexuality: A History. London . Fourth Estate, 1995.
MLA (9th ed.) Zitazioa
Spencer, Colin. Homosexuality: A History. 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.