San Diego, B. S. J. (2016). Butterflies are free. IN Heard [column]. Philippine Daily Inquirer.
Chicagoスタイル(17版)引用形式San Diego, Bayani S. Jr. "Butterflies Are Free. IN Heard [column]." Philippine Daily Inquirer 2016.
MLA(9版)引用形式San Diego, Bayani S. Jr. "Butterflies Are Free. IN Heard [column]." Philippine Daily Inquirer, 2016.
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