Water Environment Federation. (2003). Wastewater treatment plant design: Student workbook. Alexandria, VA: Water Environment Federation.
Chicago-tyylinen lähdeviittausWater Environment Federation. Wastewater Treatment Plant Design: Student Workbook. Alexandria, VA: Water Environment Federation, 2003.
MLA-viiteWater Environment Federation. Wastewater Treatment Plant Design: Student Workbook. Alexandria, VA: Water Environment Federation, 2003.
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