Columbia subject headings:
Agriculture--Mexico--Puebla (State)
Mexico--History--Spanish colony, 1540-1810.
Puebla (Mexico : State)--Social conditions.
Harvard subject headings:
Agriculture--Mexico--Puebla (State)
Mexico--History--Spanish colony, 1540-1810.
Puebla (Mexico : State)--Social conditions.
Princeton subject headings:
Agriculture--Mexico--Puebla (State).
Mexico--History--Spanish colony, 1540-1810.
Puebla (Mexico : State)--Social conditions.