Barr, James R. <br/><br/>
Principles of direct - current electrical engineering/ 
James R. Barr, D.J. Bolton 
 - 2nd ed. 
 - London:  Isaac Pitman,  1956 
 - x, 486 p.:  ill.;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> Rs. 30.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric engineering<br/>Electric currents, direct<br/>Electric motors--Testing<br/>Electric machinery--Direct current
<br/><br/><label>Dewey Class. No.: </label>621.3132