Columbia subject headings:
Communication--United States--History.
United States--Civilization--1783-1865.
United States--Civilization--To 1783.
Harvard subject headings:
Communication--United States--History.
United States--Civilization--1783-1865.
United States--Civilization--To 1783.
Princeton subject headings:
Communication--United States--History.
United States--Civilization--1783-1865.
United States--Civilization--To 1783.