Philippines. Government Service Insurance System. (1973). Performance and accomplishments of the GSIS as of June 30, 1973. [s.n.
Chicago Style (17th ed.) CitationPhilippines. Government Service Insurance System. Performance and Accomplishments of the GSIS as of June 30, 1973. Manila: [s.n, 1973.
MLA (9th ed.) CitationPhilippines. Government Service Insurance System. Performance and Accomplishments of the GSIS as of June 30, 1973. [s.n, 1973.
Warning: These citations may not always be 100% accurate.