Harvey, G M. <br/><br/>
Colliery electrical engineering : 

 - London :  Isaac Pitman and Sons,  1924. 
 - xi, 387 p. :  ill. ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining technology<br/>Power distribution<br/>Industrial electricity
<br/><br/><label>Dewey Class. No.: </label>622.48  / HAR