Yash Pal Kathpalia <br/><br/>
Conservation and restoration of archive materials 

 - Paris  Unesco  1973 
 - 231p  21cm 
<br/><br/> Constituent materials of documents.<br/>Deterioration- causes and control 
<br/><br/><label>ISBN: </label>9231010735 
<br/><br/><label>Dewey Class. No.: </label>025.171 K29c