Gupta V K <br/><br/>
Conservatin reatoration and philatellic chemistry 

 - New Delhi  Bhagwan Das Gupta India      1997 
 - 208p.  cm. 
<br/><br/><label>Standard No.: </label>23183 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIOLOGY
<br/><br/><label>Dewey Class. No.: </label>Y:1:7, N7