Hirsch, Robert <br/><br/>
Photographic possibilities :  the expressive use of ideas, materials and process / 
Robert Hirsch. 
 - Boston :  Focal,  c1991. 
 - xiii, 242p. : ill. ; 28 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0240800478 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photography.