Lacuarta, G. G. (2002). RP facing serious birdiversity crisis. Philippine Daily Inquirer.
Chicagoスタイル(17版)引用形式Lacuarta, Gerald G. "RP Facing Serious Birdiversity Crisis." Philippine Daily Inquirer 2002.
MLA(9版)引用形式Lacuarta, Gerald G. "RP Facing Serious Birdiversity Crisis." Philippine Daily Inquirer, 2002.
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