(1997). Implementing rules and regulations of the government service insurance system act of 1997. Manila Bulletin.
芝加哥风格引文"Implementing Rules and Regulations of the Government Service Insurance System Act of 1997." Manila Bulletin 1997.
MLA引文"Implementing Rules and Regulations of the Government Service Insurance System Act of 1997." Manila Bulletin, 1997.
警告：这些引文格式不一定是100％准确.