Columbia subject headings:
Cartography--Mexico--Tula de Allende Region--Bibliography.
Mexico--History--Sources--Bibliography.
Tula de Allende Region (Mexico)--History--Sources--Bibliography.
Tula de Allende Region (Mexico)--Maps--Bibliography.
Harvard subject headings:
Archivo General de la Nación (Mexico)--Catalogs.
Indians of Mexico--History--Sources--Bibliography--Catalogs.
Mexico--History--To 1810--Sources--Bibliography--Catalogs.
Tula de Allende Region (Mexico)--Historical geography--Sources--Bibliography--Catalogs.
Tula de Allende Region (Mexico)--History--Sources--Bibliography--Catalogs.
Tula de Allende Region (Mexico)--Maps--Bibliography--Catalogs.
Princeton subject headings:
Cartography--Mexico--Tula de Allende Region--Bibliography.
Mexico--History--Sources--Bibliography.
Tula de Allende Region (Mexico)--History--Sources--Bibliography.
Tula de Allende Region (Mexico)--Maps--Bibliography.