Columbia subject headings:
Agriculture--Economic aspects--Bibliography.
Agriculture--Social aspects--Bibliography.
Community development--Bibliography.
Rural conditions--Bibliography.
Rural development--Bibliography.
Harvard subject headings:
Agriculture--Economic aspects--Bibliography
Agriculture--Social aspects--Bibliography.
Community development--Bibliography.
Rural conditions--Bibliography.
Rural development--Bibliography
Princeton subject headings:
Agriculture--Economic aspects--Bibliography.
Agriculture--Social aspects--Bibliography.
Community development--Bibliography.
Rural conditions--Bibliography.
Rural development--Bibliography.