Philippines. Government Service Insurance System. (1997). GSIS Act of 1997 (RA 8291): Implementing rules and regulations. GSIS.
Citace podle Chicago (17th ed.)Philippines. Government Service Insurance System. GSIS Act of 1997 (RA 8291): Implementing Rules and Regulations. [Quezon City]: GSIS, 1997.
Citace podle MLA (9th ed.)Philippines. Government Service Insurance System. GSIS Act of 1997 (RA 8291): Implementing Rules and Regulations. GSIS, 1997.
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