Columbia subject headings:
Agriculture--Economic aspects--Mexico--Case studies.
Ejidos--Mexico--Case studies.
Land tenure--Mexico--Case studies.
Peasants--Mexico--Case studies.
Harvard subject headings:
Agriculture--Economic aspects--Mexico--Case studies.
Ejidos--Mexico--Case studies.
Land tenure--Mexico--Case studies.
Peasants--Mexico--Case studies.
Princeton subject headings:
Agriculture--Economic aspects--Mexico--Case studies.
Case studies.
Ejidos--Mexico--Case studies.
Land tenure--Mexico--Case studies.
Peasants--Mexico--Case studies.