Deterioration and preservation of library materials 
/ The thirty-fourth annual conference of the Graduate Library School 4-6, August, 1969 
 - Chicago:   The University of Chicago Press,   1970 
 - 200p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Preservation
<br/><br/><label>Subjects--Index Terms: </label>Binding practice 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.85(082.2)  / L0