Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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