Columbia subject headings:
Ejidos--Mexico, Southeast.
Henequen industry--Mexico, Southeast.
Mexico, Southeast--Economic conditions.
Mexico, Southeast--Economic policy.
Regional planning--Mexico, Southeast.
Harvard subject headings:
Agriculture and state--Mexico--Tabasco (State)
Ejidos--Mexico--Tabasco (State)
Ejidos--Mexico--Yucatán (State)
Tabasco (Mexico : State)--Economic conditions.
Yucatán (Mexico : State)--Economic conditions.
Princeton subject headings:
Ejidos--Mexico.
Regional planning--Mexico.