APA (7th ed.) Zitazioa
Summer, P. (1993). The end of April: A Victoria Cross mystery. The Women's Press.
Chicago Style (17th ed.) Zitazioa
Summer, Penny. The End of April: A Victoria Cross Mystery. London: The Women's Press, 1993.
MLA (9th ed.) Zitazioa
Summer, Penny. The End of April: A Victoria Cross Mystery. The Women's Press, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.