Citação norma APA

Government Service Insurance System (GSIS). (2011). GSIS art competition: 2011. [Government Service Insurance System].

Citação norma Chicago

Government Service Insurance System (GSIS). GSIS Art Competition: 2011. [Pasay City]: [Government Service Insurance System], 2011.

Citação norma MLA

Government Service Insurance System (GSIS). GSIS Art Competition: 2011. [Government Service Insurance System], 2011.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.