Annual conference of the graduate library school(34th  1969) <br/><br/>
Deterioration and preservation of library materials   
ed by Howard W. Winger and Richard Daniel Smith 
 - Chicago  Univ. of Chicago  1970 
 - 200p. 
 - Unoversity of chicago studies in library science .
<br/><br/><label>ISBN: </label>226902013 
<br/><br/><label>LCCN: </label>78-115971 
<br/><br/><label>Dewey Class. No.: </label>025.8  / N70