Association of Research Libraries. (1989). ARL preservation statistics. Association of Research Libraries.
Chicago Style (17th ed.) CitationAssociation of Research Libraries. ARL Preservation Statistics. Washington, D.C.: Association of Research Libraries, 1989.
MLA (9th ed.) CitationAssociation of Research Libraries. ARL Preservation Statistics. Association of Research Libraries, 1989.
Warning: These citations may not always be 100% accurate.