Herrera, C. (1997). Rain forest at UP, but for how long. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHerrera, Christine. "Rain Forest at UP, but for How Long." Philippine Daily Inquirer 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHerrera, Christine. "Rain Forest at UP, but for How Long." Philippine Daily Inquirer, 1997.
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