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Environmental Science : Principles and Practices
by Spellman, Frank R., Stoudt,...
ISBN: 9781605907864
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Hydraulic Fracturing Wastewater : Treatment, Reuse, and Disposal
by Spellman, Frank R.
ISBN: 9781138197923
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Safe Work Practices for Wastewater Treatment Plants, Third Edition
by Spellman, Frank R., Welsh, ...
ISBN: 9780815368526
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The Drinking Water Handbook
by Spellman, Frank R., Frank R...
ISBN: 9781138066472
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Water and Wastewater Infrastructure : Energy Efficiency and Sustainability
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ISBN: 9781138382213
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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