(2009). Government Service Insurance System 2009 annual report: A sturdy ship. Government Service Insurance System (GSIS).
Čikaški stil citiranja (17. izdanje)Government Service Insurance System 2009 Annual Report: A Sturdy Ship. Pasay City: Government Service Insurance System (GSIS), 2009.
MLA način citiranja (9. izdanje)Government Service Insurance System 2009 Annual Report: A Sturdy Ship. Government Service Insurance System (GSIS), 2009.
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