“Collection Development and Circulation Policies in Prison Libraries: An Exploratory Survey of Librarians in US Correctional Institutions” Suzanna Conrad, The Library Quarterly (2012, vol. 82, no. 4) http://www.jstor.org/discover/10.1086/667435?uid=3739704&uid=2129&uid=2134&uid=2&uid=70&uid=4&uid=3739256&sid=21101512177567