Singapore. National Library Board. (2008). Annual report 2007. NLB.
Cita Chicago (17th ed.)Singapore. National Library Board. Annual Report 2007. Singapore: NLB, 2008.
Cita MLA (9th ed.)Singapore. National Library Board. Annual Report 2007. NLB, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.