Columbia subject headings:
Harvard subject headings:
Agriculture--Economic aspects--Abstracts--Periodicals.
Agriculture--Economic aspects--Bibliography--Periodicals.
Sociology, Rural--Abstracts--Periodicals.
Sociology, Rural--Bibliography--Periodicals.
Princeton subject headings:
Agriculture--Economic aspects--Abstracts--Periodicals.
Agriculture--Economic aspects--Bibliography--Periodicals.
Agriculture--Economic aspects--Periodicals.
Periodicals.
Sociology, Rural--Abstracts--Periodicals.
Sociology, Rural--Bibliography--Periodicals.
Sociology, Rural--Periodicals.