Focal encyclopedia of photography 
/ McGraw-Hill Book Company 
 - Desk ed. 
 - London:   McGraw-Hill Book Company,   1969 
 - xi, 1699p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Photography 
<br/><br/><label>Universal Decimal Class. No.: </label>R 77(03)  / K9