(1993). Global studies. Guilford, Conn.: Dushkin Pub. Group.
Chicago Style aipamenaGlobal Studies. Guilford, Conn.: Dushkin Pub. Group, 1993.
MLA aipamenaGlobal Studies. Guilford, Conn.: Dushkin Pub. Group, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.