Del Castillo, L. B. (2002). Environmental management now a must due to globalization. Manila Times.
Chicagoスタイル(17版)引用形式Del Castillo, Leah B. "Environmental Management Now a Must Due to Globalization." Manila Times 2002.
MLA(9版)引用形式Del Castillo, Leah B. "Environmental Management Now a Must Due to Globalization." Manila Times, 2002.
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