Herrera, C. (1997). Rain forest at UP, but for how long. Philippine Daily Inquirer.
Chicago-viite (17. p.)Herrera, Christine. "Rain Forest at UP, but for How Long." Philippine Daily Inquirer 1997.
MLA-viite (9. p.)Herrera, Christine. "Rain Forest at UP, but for How Long." Philippine Daily Inquirer, 1997.
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