Roberts, Albert F., 1911-  Roberts, Albert F., 1911- <br/><br/>
Underground lighting in mines, shafts, and tunnels. 

 - London :  Technical Press,  [1958] 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>59000150 /L 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine lighting.
<br/><br/><label>LC Class. No.: </label>TN309  / .R6