Walls, H. J. <br/><br/>
How photography works 
H. J. Walls                                                  
 - London  The Focal Press  1959 
 - 352p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NASA thesaurus<br/>Photographic processing<br/>Photography
<br/><br/><label>Universal Decimal Class. No.: </label>77.01  / WAL