(2002). Visayan warty pigs San Diego Zoo's. Philippine Daily Inquirer.
Chicagoスタイル(17版)引用形式"Visayan Warty Pigs San Diego Zoo's." Philippine Daily Inquirer 2002.
MLA(9版)引用形式"Visayan Warty Pigs San Diego Zoo's." Philippine Daily Inquirer, 2002.
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