Columbia subject headings:
Agriculture--Economic aspects--Mexico--Bledos.
Agriculture--Mexico--Bledos--History.
Bledos (Mexico)--History.
Cabrera Ypiña, Octaviano.
Haciendas--Mexico--Bledos--History.
Haciendas--Mexico--Bledos.
Harvard subject headings:
Agriculture--Mexico--Bledos--History--Sources.
Bledos (Mexico)--History--Sources.
Haciendas--Mexico--Bledos--History--Sources.
Princeton subject headings:
Agriculture--Mexico--Bledos--History--Sources.
Bledos (Mexico)--History--Sources.
Haciendas--Mexico--Bledos--History--Sources.