Columbia subject headings:
Morelos (Mexico : State)--Economic conditions.
Morelos (Mexico : State)--Geography.
Morelos (Mexico : State)--History.
Harvard subject headings:
Morelos (Mexico : State)--Economic conditions.
Morelos (Mexico : State)--Historical geography.
Princeton subject headings:
Morelos (Mexico : State)--Economic conditions.
Morelos (Mexico : State)--Historical geography.