Jensen, P. D. Towards a sustainable water future: (second of two parts). IN Opinion. The Philippine Star.
Čikaški stil citiranja (17. izdanje)Jensen, Poul Due. "Towards a Sustainable Water Future: (second of Two Parts). IN Opinion." The Philippine Star .
MLA način citiranja (9. izdanje)Jensen, Poul Due. "Towards a Sustainable Water Future: (second of Two Parts). IN Opinion." The Philippine Star, .
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