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WEF Third Century of Biochemical Oxygen Demand Reference Guide
0.0
WEF Wastewater Treatment Plant Reference Guide
139.37
ACRP Wastewater and Water Reference Guide
48.48
AWWA Standard Methods for Examination of Water & Wastewater 24th Edition
480.0
WEF Facility Owners and Practitioners Reference Guide
149.47
WEF Collection Systems Operators’ Guide to Preparing for the Certification Examination Reference Guide
104.99
WEF Nutrient Removal Reference Guide
181.79
AWWA AWWA Wastewater Operator Field Guide Reference Guide
107.0
CSUS Small Wastewater System Operation and Maintenance - A Field Study Training Program
70.7
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AWWA Wastewater Microbiology: A Handbook for Operators Reference Guide
139.0
WEF Wastewater Reference Guide
116.14
111.09
56.55
WEF Biosolids Land Appliers’ Guide to Preparing for the Certification Examination Reference Guide
146.35
ACRP Wastewater Reference Guide
18.18
WEF Sludge Process Reference Guide
171.69
136.35
WEF Belt Press Reference Guide
94.93
106.04