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Cita Chicago (17th ed.)Philippines. Department of Environment and Natural Resources. Integrated Environmental Management for Sustainable Development Programme. Sustainable Development Trainer's Manual. Quezon City: DENR-IEMSD, 1999.
Cita MLA (9th ed.)Philippines. Department of Environment and Natural Resources. Integrated Environmental Management for Sustainable Development Programme. Sustainable Development Trainer's Manual. DENR-IEMSD, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.