Switchgear and control handbook 
Eadit by Robert W Smeaton 
 - 2nd ed. 
 - New York :   McGraw-Hill,   ©1977. 
 - various pagings. :  ill, ;  23 cm. 
<br/><br/> Includes Index. 
<br/><br/>
<br/><br/><br/>English. 
<br/><br/><label>ISBN: </label>0070584494 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Automatic control<br/>  Electric switchgea<br/>Electric controllers -- Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>621.317/SMS