Panaligan, R. G. (1999). Environmental protection pledged by 10 countries. Manila Bulletin.
Style de citation Chicago (17e éd.)Panaligan, Rey G. "Environmental Protection Pledged by 10 Countries." Manila Bulletin 1999.
Style de citation MLA (9e éd.)Panaligan, Rey G. "Environmental Protection Pledged by 10 Countries." Manila Bulletin, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.