x  x <br/><br/>
The Challenge to our cultural heritage  Why preserve the past? 

 - 1 
 - Washington, London  Smithsonian Institution  1986 
 - 252 
<br/><br/>x 
<br/><br/><label>ISBN: </label>9840515365 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historic sites - conservation & restoration Architecture 
<br/><br/><label>Dewey Class. No.: </label>363.69/C437