Soriano, M. A. J., & Castro, P. P. M. Assessment of the engineering aspects of the Ifugao Rice Terraces. Philippine Engineering Journal.
Chicagoスタイル(17版)引用形式Soriano, Mark A. Jr, , Peter Paul M. Castro. "Assessment of the Engineering Aspects of the Ifugao Rice Terraces." Philippine Engineering Journal .
MLA(9版)引用形式Soriano, Mark A. Jr, , Peter Paul M. Castro. "Assessment of the Engineering Aspects of the Ifugao Rice Terraces." Philippine Engineering Journal, .
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