Koenig, Karl P. <br/><br/>
Gumoil photographic printing 
Karl P. Koenig 
 - Rev. ed. 
 - Boston  Focal Press  c1999 
 - xvii, 147 p.  ill. (some col.)  24 cm 
<br/><br/>Includes bibliographical references :p. 131-136. 
<br/><br/><label>ISBN: </label>0240803671 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photography--Printing processes--Oil.