Columbia subject headings:
Puebla (Mexico : State)--History.
Puebla de Zaragoza (Mexico)--History.
Veracruz (Veracruz-Llave, Mexico)--History.
Veracruz-Llave (Mexico : State)--History.
Harvard subject headings:
Puebla (Mexico : State)--History.
Puebla de Zaragoza (Mexico)--Description and travel.
Puebla de Zaragoza (Mexico)--History.
Veracruz (Veracruz-Llave, Mexico)--Description and travel.
Veracruz (Veracruz-Llave, Mexico)--History.
Veracruz-Llave (Mexico : State)--History.
Princeton subject headings:
Puebla (Mexico : State)--History.
Puebla de Zaragoza (Mexico)--History.
Veracruz (Veracruz-Llave, Mexico)--History.
Veracruz-Llave (Mexico : State)--History.