Wilson, R. Dean Boiler operator's workbook / Boiler operator's workbook [computer file] R. Dean Wilson - 4th ed. - Homewood, Ill. : American Technical Pub., c2008 - 405 p. : ill. ; 28 cm. + 1 computer disc, 1 answer key Includes index ISBN: 9780826944979 9780826944986 Subjects--Topical Terms: Steam boilers