Columbia subject headings:
Early printed books--United States--18th century.
Early printed books--United States--19th century.
German imprints--Pennsylvania--Chronology.
German imprints--United States--Chronology.
Printing--Pennsylvania--Chronology.
Printing--United States--Chronology.
Harvard subject headings:
Early printed books--United States--18th century--Bibliography.
Early printed books--United States--18th century.
German imprints--Pennsylvania--Chronology.
German imprints--Pennsylvania.
German imprints--United States--Chronology.
German imprints--United States.
Pennsylvania--Imprints.
Printing--Pennsylvania--Chronology.
Printing--United States--Chronology.
United States--Imprints.
Princeton subject headings:
German imprints--United States.
United States--Imprints.