American Water Works Association, ebrary, Inc, & Maxwell, S. (2008). Business of water: A concise overview of challenges and opportunities in the water market : a compilation of recent articles from Journal AWWA. American Water Works Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)American Water Works Association, Inc ebrary, και Steve Maxwell. Business of Water: A Concise Overview of Challenges and Opportunities in the Water Market : A Compilation of Recent Articles from Journal AWWA. Denver, Colo.: American Water Works Association, 2008.
Παραπομπή σε μορφή MLA (9th εκδ.)American Water Works Association, et al. Business of Water: A Concise Overview of Challenges and Opportunities in the Water Market : A Compilation of Recent Articles from Journal AWWA. American Water Works Association, 2008.