Offemaria, R. (1997). Old tires as artificial reefs bad. Manila Chronicle.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOffemaria, Rodel. "Old Tires as Artificial Reefs Bad." Manila Chronicle 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOffemaria, Rodel. "Old Tires as Artificial Reefs Bad." Manila Chronicle, 1997.
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