Columbia subject headings:
Human rights--Nigeria--Niger River Delta.
Petroleum industry and trade--Environmental aspects--Nigeria--Niger River Delta.
Petroleum industry and trade--Environmental aspects--Nigeria.
Petroleum law and legislation--Nigeria.
Social responsibility of business--Nigeria.
Harvard subject headings:
Human rights--Nigeria--Niger River Delta.
Petroleum industry and trade--Environmental aspects--Nigeria--Niger River Delta.
Petroleum industry and trade--Environmental aspects--Nigeria.
Petroleum law and legislation--Nigeria.
Social responsibility of business--Nigeria.
Princeton subject headings:
Human rights--Nigeria--Niger River Delta.
Petroleum industry and trade--Environmental aspects--Law and legislation--Nigeria--Niger River Delta.
Petroleum industry and trade--Environmental aspects--Law and legislation--Nigeria.
Petroleum law and legislation--Nigeria.
Social responsibility of business--Nigeria.