Columbia subject headings:
Ejidos--Mexico--San Vicente.
Peasants--Mexico--San Vicente.
San Vicente (Mexico)--Economic conditions.
San Vicente (Mexico)--Social conditions.
Harvard subject headings:
Ejidos--Mexico--Guanajuato (State)
Guanajuato (Mexico : State)--Rural conditions.
Peasants--Mexico--Guanajuato (State)
Social structure--Mexico--Guanajuato (State)
Princeton subject headings:
Collectivization of agriculture--Mexico--San Vicente.
Peasants--Mexico--San Vicente--Economic conditions.
Peasants--Mexico--San Vicente--Social conditions.
Rural development--Mexico--San Vicente.