Columbia subject headings:
Harvard subject headings:
Haciendas--Mexico--History--Congresses.
Land reform--Mexico--History--Congresses.
Land tenure--Mexico--History--Congresses.
Latifundio--Mexico--History--Congresses.
Princeton subject headings:
Haciendas--Mexico--History--Congresses.
Land reform--Mexico--History--Congresses.
Land tenure--Mexico--History--Congresses.
Latifundio--Mexico--History--Congresses.