HAYES, C. J. H. (1970). Contemporary Europe since 1870. Macmillan.
Chicago Style (17th ed.) ZitazioaHAYES, Carlton J. H. Contemporary Europe Since 1870. New York: Macmillan, 1970.
MLA (9th ed.) ZitazioaHAYES, Carlton J. H. Contemporary Europe Since 1870. Macmillan, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.