Mathematics Manual for Water and Wastewater Treatment Plant Operators: Wastewater Treatment Operations Math Concepts and Calculations Spellman Frank R. Heftet / 2023 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators Basic Mathematics for Water and Wastewater Operators Spellman Frank R. Innbundet / 2023 / Engelsk
Water & Wastewater Infrastructure Energy Efficiency and Sustainability Spellman Frank R. Innbundet / 2013 / Engelsk
Land Subsidence Mitigation Aquifer Recharge Using Treated Wastewater Injection Spellman Frank R. Innbundet / 2017 / Engelsk
Handbook of Water and Wastewater Treatment Plant Operations Spellman Frank R. Heftet / 2025 / Engelsk
Handbook of Water and Wastewater Treatment Plant Operations Spellman Frank R. Heftet / 2020 / Engelsk
Physical Hazard Control Preventing Injuries in the Workplace Spellman Frank R. Heftet / 2023 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators: Wastewater Treatment Operations Math Concepts and Calculations Spellman Frank R. Heftet / 2014 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators, Third Edition Spellman Frank R. Kombinasjonsprodukt / 2023 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators: Wastewater Treatment Operations Math Concepts and Calculations Spellman Frank R. Innbundet / 2017 / Engelsk
Chemistry for Nonchemists Principles and Applications for Environmental Practitioners Spellman Frank R. Heftet / 2006 / Engelsk
Handbook of Water and Wastewater Treatment Plant Operations Spellman Frank R. Innbundet / 2025 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations Math Concepts and Calculations Spellman Frank R. Heftet / 2014 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations Math Concepts and Calculations Spellman Frank R. Innbundet / 2017 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators: Wastewater Treatment Operations Math Concepts and Calculations Spellman Frank R. Innbundet / 2023 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations Math Concepts and Calculations Spellman Frank R. Innbundet / 2023 / Engelsk
Water & Wastewater Infrastructure Energy Efficiency and Sustainability Spellman Frank R. Heftet / 2018 / Engelsk
Spellman's Standard Handbook for Wastewater Operators Volume I, Fundamental Level, Second Edition Spellman Frank R. Heftet / 2010 / Engelsk
Mathematics Manual for Water and Wastewater Treatment Plant Operators - Three Volume Set Spellman Frank R. Kombinasjonsprodukt / 2014 / Engelsk
Reverse Osmosis A Guide for the Nonengineering Professional Spellman Frank R. Innbundet / 2015 / Engelsk
