HVAC. level one : annotated instructor's guide 
[National Center for Construction Education and Research] 
 - 3rd ed 
 - Upper Saddle River, NJ  Pearson/Prentice Hall  c2007 
 - 1 v. (various pagings) : ill. ; 28 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780136144182 
<br/><br/><label>ISSN: </label>2009278763 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air conditioning<br/>Heating<br/>Ventilation
<br/><br/><label>Dewey Class. No.: </label>697 NCC