Columbia subject headings:
Book industries and trade--Pennsylvania--Philadelphia--History--18th century.
Books and reading--Pennsylvania--Philadelphia--History--18th century.
Booksellers and bookselling--Pennsylvania--Philadelphia--History--18th century.
Libraries--Pennsylvania--Philadelphia--History--17th century.
Libraries--Pennsylvania--Philadelphia--History--17th-18th centuries.
Libraries--Pennsylvania--Philadelphia--History--18th century.
Philadelphia (Pa.)--Intellectual life.
United States--Intellectual life--18th century.
Harvard subject headings:
Book industries and trade--Pennsylvania--Philadelphia--History--18th century.
Books and reading--Pennsylvania--Philadelphia--History--18th century.
Booksellers and bookselling--Pennsylvania--Philadelphia--History--18th century.
Libraries--Pennsylvania--Philadelphia--History--17th-18th centuries.
Philadelphia (Pa.)--Intellectual life.
United States--Intellectual life--18th century.
Princeton subject headings:
Book industries and trade--Pennsylvania--Philadelphia--History--18th century.
Books and reading--Pennsylvania--Philadelphia--History--18th century.
Booksellers and bookselling--Pennsylvania--Philadelphia--History--18th century.
Libraries--Pennsylvania--Philadelphia--History--17th-18th centuries.
Philadelphia (Pa.)--Intellectual life.
United States--Intellectual life--18th century.