Columbia subject headings:
Cataloging of early printed books.
Descriptive cataloging--Rules.
ESTC (Project)
Harvard subject headings:
Cataloging of early printed books.
Princeton subject headings:
Bibliography--Great Britain--Data processing.
Cataloging of early printed books--Data processing.
Descriptive cataloging--Data processing--Rules.
ESTC (Project)
Early printed books--18th century--Data processing.