Columbia subject headings:
Mexico--Description and travel.
Mexico--Statistics.
Mines and mineral resources--Mexico.
Harvard subject headings:
Agriculture--New Spain.
Mexico--Description and travel.
Mexico--Statistics.
Mines and mineral resources--Mexico
Mines and mineral resources--New Spain.
New Spain--Description and travel.
New Spain--Economic conditions.
New Spain--Politics and government.
New Spain--Population.
New Spain--Social conditions.
New Spain--Statistics.
Princeton subject headings:
Mexico--Description and travel.
Mexico--Statistics.
Mines and mineral resources--Mexico.
Statistics.