Deterioration and preservation of library materials : the thirty-fourth annual conference of the Graduate Library School, August 4-6, 1969 - Winger, Howard W; Smith, Richard Daniel, 1927-; University of Chicago. Graduate Library School (Chicago, Ill. : University of Chicago Press, 1970)
'Papers ... published originally in the Library quarterly, January 1970.'
Includes bibliographies
Keywords: Library materials -- Conservation and restoration -- Congresses; Photographs -- Conservation and restoration -- Congresses