Universal decimal classification. UDC 77 :   photography 

 - 4th ed. 
 - London :   British Standards Institution,   1968. 
 - 33 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fotografia
<br/><br/><label>Subjects--Index Terms: </label>Cdu Clasificacion Decimal Universal