APA (7e ed.) Bronvermelding

Soriano, M. A. J., & Castro, P. P. M. Assessment of the engineering aspects of the Ifugao Rice Terraces. Philippine Engineering Journal.

Chicago (17e ed.) Bronvermelding

Soriano, Mark A. Jr, en Peter Paul M. Castro. "Assessment of the Engineering Aspects of the Ifugao Rice Terraces." Philippine Engineering Journal .

MLA (9e ed.) Bronvermelding

Soriano, Mark A. Jr, en Peter Paul M. Castro. "Assessment of the Engineering Aspects of the Ifugao Rice Terraces." Philippine Engineering Journal, .