Offemaria, R. (1997). Red tide harms sustainable development of marine ecosystems. Manila Chronicle.
Chicago-viite (17. p.)Offemaria, Rodel. "Red Tide Harms Sustainable Development of Marine Ecosystems." Manila Chronicle 1997.
MLA-viite (9. p.)Offemaria, Rodel. "Red Tide Harms Sustainable Development of Marine Ecosystems." Manila Chronicle, 1997.
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