Columbia subject headings:
American newspapers--Rhode Island--Providence.
Printers--Rhode Island--Providence.
Printing--Rhode Island--Providence--History.
Harvard subject headings:
American newspapers--Rhode Island--Providence.
Printers--Rhode Island--Providence.
Printing--Rhode Island--Providence--History.
Princeton subject headings:
American newspapers--Rhode Island--Providence.
Printers--Rhode Island--Providence.
Printing--Rhode Island--Providence--History.