Columbia subject headings:
Human rights--Nigeria--Niger River Delta.
Human rights--Nigeria.
Land use--Law and legislation--Nigeria.
Land use--Nigeria--Niger River Delta.
Niger River Delta (Nigeria)
Niger River Delta (Nigeria)--Economic conditions.
Niger River Delta (Nigeria)--Politics and government.
Petroleum industry and trade--Nigeria.
Petroleum law and legislation--Nigeria.
Harvard subject headings:
Human rights--Nigeria--Niger River Delta.
Land use--Nigeria--Niger River Delta.
Niger River Delta (Nigeria)
Petroleum industry and trade--Social aspects--Nigeria.
Princeton subject headings: