Southworth, J. <br/><br/>
Photographic chemicals and chemistry 

 - London :  Isaac Pitman and Sons,  1938. 
 - vi, 128 p. :  19 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photographic Chemistry<br/>Photographic Processing<br/>Silver Halide Photography
<br/><br/><label>Dewey Class. No.: </label>661.808  / SOU