Mason.C.R. <br/><br/>
Art &Science Of Protective Relaying.(1956). 

 - 1st Ed. 
 -  JWS  1972 
 - 410p.  23 cm. 
<br/><br/><br/>Text in English 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>ELEC
<br/><br/><label>Index Terms--Genre/Form: </label><br/>D-14
<br/><br/><label>Dewey Class. No.: </label>24D-1652  / MAS