Ruiz, E. (2020). Palm species discovered in Palawan. Manila Bulletin.
Chicagoスタイル(17版)引用形式Ruiz, Ellalyn. "Palm Species Discovered in Palawan." Manila Bulletin 2020.
MLA(9版)引用形式Ruiz, Ellalyn. "Palm Species Discovered in Palawan." Manila Bulletin, 2020.
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