Columbia subject headings:
Books--Conservation and restoration--Periodicals.
Libraries--Special collections--Nonbook materials--Conservation and restoration--Periodicals.
Microforms--Bibliography--Methodology--Periodicals.
Microforms--Periodicals.
Newspapers in microform--Periodicals.
Periodicals in microform--Periodicals.
Harvard subject headings:
Princeton subject headings:
Books--Conservation and restoration--Periodicals.
Libraries--Special collections--Nonbook materials--Conservation and restoration--Periodicals.
Microforms--Bibliography--Methodology--Periodicals.
Microforms--Periodicals.
Newspapers in microform--Periodicals.
Periodicals.