1. Water Treatment Plant Operation (Required)
    7th edition
    ISBN: 9781323416174
    Author: Office Of Water Programs
    Estimated Price: $131.00 (new)
    New Retail Price: 131.00, Used Retail Price: 98.25. This is not a Rental Title.
  2. Operation of Wastewater Treatment Plants (VII) (Required)
    7th edition
    ISBN: 9781593710385
    Author: OWP
    Estimated Price: $71.25 (new)
    New Retail Price: 71.25, Used Retail Price: 53.50. This is not a Rental Title.