APA (7th ed.) Citation

Philippines. Government Service Insurance System. (1965). GSIS handbook of information on retirement insurance. GSIS.

Chicago Style (17th ed.) Citation

Philippines. Government Service Insurance System. GSIS Handbook of Information on Retirement Insurance. Manila: GSIS, 1965.

MLA (9th ed.) Citation

Philippines. Government Service Insurance System. GSIS Handbook of Information on Retirement Insurance. GSIS, 1965.

Warning: These citations may not always be 100% accurate.