Columbia subject headings:
Bookbinding.
Books--Conservation and restoration.
Books--Deacidification.
Books.
Library of Congress Mass Book Deacidification Facility (Md.)
Library of Congress.
Harvard subject headings:
Bookbinding
Books--Conservation and restoration
Books--Deacidification
Books.
Library of Congress Mass Book Deacidification Facility (Md.)
Princeton subject headings:
Bookbinding.
Books--Conservation and restoration.
Books--Deacidification.
Books.
Library of Congress Mass Book Deacidification Facility (Md.)