Barr, J.R. & Bolton, D.J. <br/><br/>
Direct Current Electrical Engineering 

 -  Isaac Pitman & Sons Ltd, London.  1949 
 - 348p.  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-10
<br/><br/><label>Dewey Class. No.: </label> / BAR