Mercado, J. L. (2013). Tracking sunsets. IN Viewpoint [column]. Philippine Daily Inquirer.
Chicagoスタイル(17版)引用形式Mercado, Juan L. "Tracking Sunsets. IN Viewpoint [column]." Philippine Daily Inquirer 2013.
MLA(9版)引用形式Mercado, Juan L. "Tracking Sunsets. IN Viewpoint [column]." Philippine Daily Inquirer, 2013.
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