Nunn, Robert G Water treatment essentials for boiler plant operation Robert G. Nunn - New York McGraw-Hill c1997 - xi, 225 p. : ill. ; 24 cm Includes index ISBN: 9780070482197 ISSN: 96047395 Subjects--Topical Terms: Feed-water purificationSteam-boilers - Water-supply Dewey Class. No.: 621.18 NUN