Murray, Stuart (2009). The Library: An Illustrated History. New York: Skyhorse. pp. 132-133. ISBN 9781616084530. OCLC 277203534Arxivləşdirilib 2020-04-07 at the Wayback Machine.
worldcat.org
Johns Hopkins Guide to Literary Theory and Criticism(2nd ed.). Baltimore: Johns Hopkins University Press. 2005. ISBN 0801880106. OCLC 54374476.
Murray, Stuart (2009). The Library: An Illustrated History. New York: Skyhorse. pp. 132-133. ISBN 9781616084530. OCLC 277203534Arxivləşdirilib 2020-04-07 at the Wayback Machine.