(1999). Registered live births in the Philippines: 1997. NSO Monthly Bulletin Statistics.
Chicago Style (17th ed.) Citation"Registered Live Births in the Philippines: 1997." NSO Monthly Bulletin Statistics 1999.
MLA引文"Registered Live Births in the Philippines: 1997." NSO Monthly Bulletin Statistics, 1999.
警告：這些引文格式不一定是100％准確.