Columbia subject headings:
Mexico--History--Spanish colony, 1540-1810.
Mexico--Kings and rulers.
Spain--Colonies--Administration.
Harvard subject headings:
Mexico--History--Spanish colony, 1540-1810.
Mexico--Kings and rulers.
Spain--Colonies--Administration.
Princeton subject headings:
Mexico--History--Spanish colony, 1540-1810.
Mexico--Kings and rulers.
Spain--Colonies--Administration.