Valverde, Marķa Fernanda <br/><br/>
Photographic negatives  :   nature and evolution of processes 

 -  Advanced Residency Program in Photograph Conservation,  cop.2005 
 - 35 p. :   il. ;   28 cm 
<br/><br/>2a ed Bibliografia 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fotografia--Revelatge
<br/><br/><label>Universal Decimal Class. No.: </label>IM 77.3-7 ||      VAL