APA (7th ed.) Zitazioa
Weir, B., Benson, D. C., & Weir, C. (1987). Hostage bound, hostage free. Westminster Press.
Chicago Style (17th ed.) Zitazioa
Weir, Ben, Dennis C. Benson, eta Carol Weir. Hostage Bound, Hostage Free. Philadelphia: Westminster Press, 1987.
MLA (9th ed.) Zitazioa
Weir, Ben, et al. Hostage Bound, Hostage Free. Westminster Press, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.