APA (7th ed.) Zitazioa
Keegan, M. (1999). Death's head (New edition.). GMP.
Chicago Style (17th ed.) Zitazioa
Keegan, Mel. Death's Head. New edition. Swaffham: GMP, 1999.
MLA (9th ed.) Zitazioa
Keegan, Mel. Death's Head. New edition. GMP, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.