Ruiz, E. (2018). PH pledges conservation of forests. Manila Bulletin.
Chicagoスタイル(17版)引用形式Ruiz, Ellalyn. "PH Pledges Conservation of Forests." Manila Bulletin 2018.
MLA(9版)引用形式Ruiz, Ellalyn. "PH Pledges Conservation of Forests." Manila Bulletin, 2018.
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