1. OCLC. Internal Revenue Service [Fiscal 2017]
2. OCLC. Internal Revenue Service [Fiscal 2016]
3. OCLC. Internal Revenue Service [Fiscal 2015]
4. OCLC. Internal Revenue Service [Fiscal 2014]
5. OCLC. Internal Revenue Service [Fiscal 2013]
6. OCLC. Internal Revenue Service [Fiscal 2012]
7. OCLC. Internal Revenue Service [Fiscal 2011]
8. OCLC. Internal Revenue Service [Fiscal 2010]
9. OCLC. Internal Revenue Service [Fiscal 2009]
10. OCLC. Internal Revenue Service [Fiscal 2008]
11. OCLC. Internal Revenue Service [Fiscal 2007]
12. OCLC. Internal Revenue Service [Fiscal 2006]
13. OCLC. Internal Revenue Service [Fiscal 2005]
14. OCLC. Internal Revenue Service [Fiscal 2004]
15. OCLC. Internal Revenue Service [Fiscal 2003]