Jeffery, Harley M. <br/><br/>
Loop checking :  a technicians guide / 
Harley M. Jeffery 
 - 1a. ed. 
 - North Carolina:  ISA,  2005 
 - 141 p. 
 - Technician series .
 - Technician series (ISA) .
<br/><br/><label>ISBN: </label>9781556179105 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CIRCUITOS<br/>CONTROL INDUSTRIAL<br/>AUTOMATIZACIÓN