Soriano, R., Rojas, D. S., & Dizon, C. Q. (1993). The NHRC water database for planning and research. Philippine Engineering Journal.
Chicago Style (17. basım) AtıfSoriano, Roberto, David S. Rojas, ve Cornelio Q. Dizon. "The NHRC Water Database for Planning and Research." Philippine Engineering Journal 1993.
MLA (9th ed.) AtıfSoriano, Roberto, et al. "The NHRC Water Database for Planning and Research." Philippine Engineering Journal, 1993.
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