1. See http://www.cni.org/pub/NISO/docs/Z39.50.brochure.part01.html (accessed April 21, 2006).
2. Cathy, De Rosaet al, Perceptions of Libraries and Information Resources: Part 1: Libraries and Information Sources-Use Familiarity and Favorability (2005): 1http://www.oclc.org/reports/2005perceptions.htm (accessed April 21, 2006).
3. Cathy, De Rosaet al, Perceptions of Libraries and Information Resources: Part 1: Libraries and Information Sources-Use Familiarity and Favorability (2005): 1http://www.oclc.org/reports/2005perceptions.htm (accessed April 21, 2006).
4. Cathy, De Rosaet al, Perceptions of Libraries and Information Resources: Part 1: Libraries and Information Sources-Use Familiarity and Favorability (2005): 1http://www.oclc.org/reports/2005perceptions.htm (accessed April 21, 2006). 2–18.