Styles, Howard <br/><br/>
Technician certification for refrigerants / 
 Technician certification for refrigerants  [computer file] 
Howard Styles 
 - 2nd ed. 
 - Orland Park, Ill :  American Technical Pub.,  c2009 
 - 246 p. :  ill. ;  29 cm. +  1 computer disc, 1 ans. key 
<br/><br/> Includes index and glossary 
<br/><br/><label>ISBN: </label>9780826906984 (txtbk.) 9780826906991 (ans. key) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Refrigeration and refrigerating machinery<br/>Refrigeration and refrigerating machinery--Certification