(2009). Government Service Insurance System 2009 annual report: A sturdy ship. Government Service Insurance System (GSIS).
Citazione stile Chigago Style (17a edizione)Government Service Insurance System 2009 Annual Report: A Sturdy Ship. Pasay City: Government Service Insurance System (GSIS), 2009.
Citatione MLA (9a ed.)Government Service Insurance System 2009 Annual Report: A Sturdy Ship. Government Service Insurance System (GSIS), 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.