Columbia subject headings:
Harvard subject headings:
Mexico--History--Spanish colony, 1540-1810--Sources.
Zacatecas (Zacatecas, Mexico)--History--Sources.
Princeton subject headings:
Mines and mineral resources--Mexico--Zacatecas (Zacatecas)--History--16th century--Sources.
Zacatecas (Zacatecas, Mexico)--Church history--Sources.
Zacatecas (Zacatecas, Mexico)--History--Sources.
Zacatecas (Zacatecas, Mexico)--Politics and government--Sources.