(1997). El Niño is back, threatens to desrupt weather. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"El Niño Is Back, Threatens to Desrupt Weather." Philippine Daily Inquirer 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"El Niño Is Back, Threatens to Desrupt Weather." Philippine Daily Inquirer, 1997.
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