Columbia subject headings:
Europe--Politics and government--18th century.
Mexico--History--Spanish colony, 1540-1810.
Spain--Colonies--Administration.
Harvard subject headings:
Europe--Politics and government--18th century.
Mexico--History--Spanish colony, 1540-1810.
Spain--Colonies--Administration.
Princeton subject headings:
Europe--Politics and government--18th century.
Mexico--History--Spanish colony, 1540-1810.
Spain--Colonies--Administration.