De Barr, A. E. <br/><br/>
Soft magnetic materials used in industry / 
by A. E. De Barr. 
 - London:  Chapman & Hall,  1953. 
 - 62 p. :  ill. ;  19 cm. 
<br/><br/>p. 58 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Magnetic materials.