Columbia subject headings:
Agriculture--Economic aspects--Mexico--History--20th century--Sources--Bibliography--Catalogs.
Archivo General Agrario (Mexico)--Catalogs.
Land reform--Mexico--History--20th century--Sources--Bibliography--Catalogs.
Land tenure--Mexico--History--20th century--Sources--Bibliography--Catalogs.
Harvard subject headings:
Agriculture--Economic aspects--Mexico--History--20th century--Sources--Bibliography--Catalogs.
Archivo General Agrario (Mexico)--Catalogs.
Land reform--Mexico--History--20th century--Sources--Bibliography--Catalogs.
Land tenure--Mexico--History--20th century--Sources--Bibliography--Catalogs.
Princeton subject headings: