Columbia subject headings:
Agricultural geography--Social aspects.
Agriculture--Economic aspects.
Farms, Size of.
Land use, Rural.
Sociology, Rural.
Harvard subject headings:
Agricultural geography--Social aspects.
Agriculture--Economic aspects
Farms, Size of.
Land use, Rural.
Sociology, Rural.
Princeton subject headings:
Agricultural geography--Social aspects.
Agriculture--Economic aspects.
Farms, Size of.
Land use, Rural.
Sociology, Rural.