Columbia subject headings:
United States--Economic conditions--To 1865.
United States--History--Revolution, 1775-1783--Causes.
United States--Politics and government--To 1775.
United States--Social conditions--To 1865.
Harvard subject headings:
Boston (Mass.)--History--Revolution, 1775-1783--Causes.
New York (N.Y.)--History--Revolution, 1775-1783--Causes.
Philadelphia (Pa.)--History--Revolution, 1775-1783--Causes.
United States--Economic conditions--To 1865.
United States--History--Revolution, 1775-1783--Causes.
United States--Politics and government--To 1775.
United States--Social conditions--To 1865.
Princeton subject headings:
United States--Economic conditions--To 1865.
United States--History--Revolution, 1775-1783--Causes.
United States--Politics and government--To 1775.
United States--Social conditions--To 1865.