Cita APA (7th ed.)

Philippines(Republic) Government Service Insurance System. (1963). Handbook of information. GSIS.

Cita Chicago (17th ed.)

Philippines(Republic) Government Service Insurance System. Handbook of Information. Manila: GSIS, 1963.

Cita MLA (9th ed.)

Philippines(Republic) Government Service Insurance System. Handbook of Information. GSIS, 1963.