Columbia subject headings:
Geography.
United States--History--Confederation, 1783-1789.
United States--History--Revolution, 1775-1783.
Harvard subject headings:
Geography
Natural history
United States--History--Confederation, 1783-1789.
United States--History--Revolution, 1775-1783.
Princeton subject headings:
Geography.
United States--History--Confederation, 1783-1789.
United States--History--Revolution, 1775-1783.