Association of College and Research Libraries, University of Illinois at Urbana-Champaign. Graduate School of Library and Information Science. Center for Informatics Research in Science and Scholarship, Petrowski, M. J., & Varvel, V. E. (2009). 2008 academic library trends and statistics for Carnegie classification... Association of College and Research Libraries.
Chicago Style (17th ed.) CitationAssociation of College and Research Libraries, University of Illinois at Urbana-Champaign. Graduate School of Library and Information Science. Center for Informatics Research in Science and Scholarship, Mary Jane Petrowski, and Virgil E. Varvel. 2008 Academic Library Trends and Statistics for Carnegie Classification... Chicago: Association of College and Research Libraries, 2009.
MLA引文Association of College and Research Libraries, et al. 2008 Academic Library Trends and Statistics for Carnegie Classification... Association of College and Research Libraries, 2009.