APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.