Dwiggins, Boyee H. <br/><br/>
Guide to the EPA refrigerant handling certification / 
Boycee H. Dwiggins, Edward F. Mahoney 
 - New Jersey, England  Prentice Hall  2000 
 - vi, 218p.  ill.  24cm 
<br/><br/><label>ISBN: </label>0130115452  RM335.30 9780130115454  RM335.30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Refrigeretion and refrigeerating machinery--Examinations, questions, etc.<br/>Technicians in industry--Certification--Study guides