APA (7th ed.) Citation

(1990). Directory of Unesco Information Services: Library, Archives, and Documentation Centres = Repertoire des Services d'information de l'Unesco: bibliotheque, archives et centres de documentation.

Chicago Style (17th ed.) Citation

Directory of Unesco Information Services: Library, Archives, and Documentation Centres = Repertoire Des Services D'information De L'Unesco: Bibliotheque, Archives Et Centres De Documentation. 1990.

MLA (9th ed.) Citation

Directory of Unesco Information Services: Library, Archives, and Documentation Centres = Repertoire Des Services D'information De L'Unesco: Bibliotheque, Archives Et Centres De Documentation. 1990.