Columbia subject headings:
Embargo, 1807-1809.
United States--Foreign relations--1801-1809.
Harvard subject headings:
Embargo, 1807-1809.
Massachusetts--Politics and government--1775-1865.
Massachusetts. Governor (1807-1808 : Sullivan)
United States--Politics and government--1801-1809.
Princeton subject headings:
Embargo, 1807-1809.
United States--Foreign relations--1801-1809.