Toquero, E. S., & French, M. Z. B. (2009). Gaddang of Isabela. National Commission for Culture and the Arts.
Chicagoスタイル(17版)引用形式Toquero, Elena S., , Ma. Zenaida B. French. Gaddang of Isabela. Manila: National Commission for Culture and the Arts, 2009.
MLA(9版)引用形式Toquero, Elena S., , Ma. Zenaida B. French. Gaddang of Isabela. National Commission for Culture and the Arts, 2009.
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