Boiler operator's guide 
Wohlfarth, Ray. 
 - 5th ed. 
 -  McGraw Hill,  2021 
 - xi, 737 pages 
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<br/><br/><label>ISBN: </label>978-1-26002699-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Steam-boilers. -- Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>621.194 W846 2021