Contreras, V. (2004). How do you tell a twister from typhoon: Spawned winds. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रContreras, Voltaire. "How Do You Tell a Twister from Typhoon: Spawned Winds." Philippine Daily Inquirer 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रContreras, Voltaire. "How Do You Tell a Twister from Typhoon: Spawned Winds." Philippine Daily Inquirer, 2004.
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