ZIEBURTZ, Bill a GIARDINA, Rick. Principles of water rates, fees, and charges. 6th ed. AWWA manual. Denver, CO: American Water Works Association, ©2012. ISBN 9781613001370. Dostupné také z: https://proxy.k.utb.cz/login?url=https://app.knovel.com/hotlink/toc/id:kpPWRFCM0H/principles-of-water?kpromoter=marc.