APA (7th ed.) Zitazioa
Lavergne, G. M. (1997). A sniper in the Tower: The Charles Whitman murders. University of North Texas Press.
Chicago Style (17th ed.) Zitazioa
Lavergne, Gary M. A Sniper in the Tower: The Charles Whitman Murders. Denton: University of North Texas Press, 1997.
MLA (9th ed.) Zitazioa
Lavergne, Gary M. A Sniper in the Tower: The Charles Whitman Murders. University of North Texas Press, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.