Soriano, M. A., & Castro, P. P. M. (2012). Assessment of the engineering aspects of the Ifugao rice terraces. Philippine Engineering Journal.
Citace podle Chicago (17th ed.)Soriano, Mario A., a Peter Paul M. Castro. "Assessment of the Engineering Aspects of the Ifugao Rice Terraces." Philippine Engineering Journal 2012.
Citace podle MLA (9th ed.)Soriano, Mario A., a Peter Paul M. Castro. "Assessment of the Engineering Aspects of the Ifugao Rice Terraces." Philippine Engineering Journal, 2012.
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