Philippines & Philippines. Government Service Insurance System. (1997). GSIS Act of 1997 (RA 8291): Implementing rules and regulations. [GSIS].
Chicago Style (17th ed.) CitationPhilippines and Philippines. Government Service Insurance System. GSIS Act of 1997 (RA 8291): Implementing Rules and Regulations. [Quezon City]: [GSIS], 1997.
MLA引文Philippines and Philippines. Government Service Insurance System. GSIS Act of 1997 (RA 8291): Implementing Rules and Regulations. [GSIS], 1997.
警告:這些引文格式不一定是100%准確.