Mertle, Joseph Stephen,  1899- <br/><br/>
Photomechanics and printing / 
Joseph Stephen Mertle [and] Gordon L. Monsen 
 - Chicago :  Mertle Pub.,  1957 
 - 423 p. :  ill. ;  18 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 16.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photomechanical processes
<br/><br/><label>Dewey Class. No.: </label>655.32