1. AWWA Water Operator Field Guide (Required)
   Author: American Water Works Associati
   2nd edition ISBN 9781583219041
   New Retail Price: 107.00, Used Retail Price: 80.25. This is not a Rental Title.
2. AWWA Wastewater Operator Field Guide (Recommended)
   Author: Awwa
   ISBN 9781583213865
   New Retail Price: 107.00, Used Retail Price: 80.25. This is not a Rental Title.