Clean Up the World. (2000). MMDA council endorses Australia's clean up the world. Manila Bulletin.
Chicago-viite (17. p.)Clean Up the World. "MMDA Council Endorses Australia's Clean Up the World." Manila Bulletin 2000.
MLA-viite (9. p.)Clean Up the World. "MMDA Council Endorses Australia's Clean Up the World." Manila Bulletin, 2000.
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