John, D H O <br/><br/>
Photographic Chemistry 

 - New York  Chpman  1900 
 - 330p. 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Techniques, equipment & materials--Chemistry--Photography, photographs
<br/><br/><label>Dewey Class. No.: </label>771.5  / JOH-P