177.
Water and Wastewater Infrastructure : Energy Efficiency and Sustainability
by Spellman, Frank R.
ISBN: 9781138382213
179.
Blueprint Reading : Fundamentals for the Water and Wastewater Maintenance Operator
by Spellman, Frank R.
ISBN: 9781138474581
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Mathematics Manual for Water and Wastewater Treatment Plant Operators, Second Edition : Wast...
by Spellman, Frank R.
ISBN: 9781138475168
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Mathematics Manual for Water and Wastewater Treatment Plant Operators, Second Edition : Wate...
by Spellman, Frank R.
ISBN: 9781138475182
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Handbook of Water and Wastewater Treatment Plant Operations, Third Edition
by Spellman, Frank R.
ISBN: 9781138474437
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Safe Work Practices for Wastewater Treatment Plants, Second Edition
by Spellman, Frank R., Spellma...
ISBN: 9781138474857
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Water & Wastewater Infrastructure: Energy Efficiency and Sustainability
by Frank R. Spellman
ISBN: 9781466517851
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Reverse Osmosis: A Guide for the Nonengineering Professional
by Frank R. Spellman
ISBN: 9780367377519
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Mathematics Manual for Water and Wastewater Treatment Plant Operators : Basic Mathematics fo...
by Spellman, Frank R.
ISBN: 9781032406848
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Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Opera...
by Spellman, Frank R.
ISBN: 9781032406879
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Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Opera...
by Spellman, Frank R.
ISBN: 9781032406862
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Mathematics Manual for Water and Wastewater Treatment Plant Operators : Basic Mathematics fo...
by Spellman, Frank R.
ISBN: 9781032406855