Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.