Columbia subject headings:
Agricultural surveys--Nigeria.
Agriculture--Economic aspects--Nigeria--Statistics.
Farmers--Economic aspects--Nigeria--Statistics.
Rural poor--Nigeria--Statistics.
Harvard subject headings:
Agricultural surveys--Nigeria.
Agriculture--Economic aspects--Nigeria--Statistics.
Farm income--Nigeria--Statistics.
Farmers--Economic aspects--Nigeria--Statistics.
Farmers--Economic conditions--Nigeria--Statistics.
Rural poor--Nigeria--Statistics.
Rural poor--Nigeria--Statitstics.
Princeton subject headings: