628.1.034.2(075.8) water treatment. drinking water. water treatment methods. úprava vody. spôsoby úpravy vody. pitná vodaKriš, Jozef, 1945- Water and waste water treatment Part 2. : Water treatment.Treatment of drinking and service water. -- Tambov : Izd-vo IP Česnokova A.V., 2011. -- 172 s. -- ISBN : 978-5-903435-90-6. Capannelli, Gustavo