(2001). GSIS income increased by 42% on 1st quarter. Manila Bulletin.
Chicago Style (17th ed.) Citation"GSIS Income Increased by 42% on 1st Quarter." Manila Bulletin 2001.
MLA引文"GSIS Income Increased by 42% on 1st Quarter." Manila Bulletin, 2001.
警告：這些引文格式不一定是100％准確.