European Centre for higher Education. (1987). International directory of research institutions on higher education (2nd ed.). United Nations Educational, Scientific and Cultural Organization.
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Chicago Style (17th ed.) Zitazioa
European Centre for higher Education. International Directory of Research Institutions on Higher Education. 2nd ed. Fontenoy, Paris: United Nations Educational, Scientific and Cultural Organization, 1987.
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MLA (9th ed.) Zitazioa
European Centre for higher Education. International Directory of Research Institutions on Higher Education. 2nd ed. United Nations Educational, Scientific and Cultural Organization, 1987.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.