APA引文

Panaligan, R. G. (1999). Environmental protection pledged by 10 countries. Manila Bulletin.

Chicago Style (17th ed.) Citation

Panaligan, Rey G. "Environmental Protection Pledged by 10 Countries." Manila Bulletin 1999.

MLA引文

Panaligan, Rey G. "Environmental Protection Pledged by 10 Countries." Manila Bulletin, 1999.

警告：這些引文格式不一定是100％准確.