Corbett, Demund V. <br/><br/>
Photo-charging : Its Operation And Installation In British Public Library 

 - London  James Clarke & Co.  1957 
 - x, 126p. 4 plts. diag. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>2:M95
<br/><br/><label>Dewey Class. No.: </label>2:M95  / I7