Mason, C. Russell. <br/><br/>
The art and science of protective relaying / 
C. Russell Mason 
 - New York,  Wiley,  1956. 
 - 410pages.  illustrations 
 - General Electric series, written for the advancement of engineering practice .
<br/><br/><label>LCCN: </label>56008964  
<br/><br/><label>Nat. Bib. No.: </label>GB56-17364 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric relays
<br/><br/><label>LC Class. No.: </label>TK2861  / .M3 
<br/><br/><label>Dewey Class. No.: </label>621.311