Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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