Columbia subject headings:
Hydrocarbons--Political aspects--Cameroon.
Hydrocarbons--Political aspects.
Petroleum industry and trade--Cameroon.
Petroleum industry and trade.
Harvard subject headings:
Hydrocarbons--Africa.
Hydrocarbons--Cameroon.
Hydrocarbons--Political aspects.
Petroleum industry and trade--Political aspects
Petroleum industry and trade--Political aspects--Africa.
Petroleum industry and trade--Political aspects--Cameroon.
Princeton subject headings:
Hydrocarbons--Africa.
Hydrocarbons--Cameroon.
Hydrocarbons--Political aspects.
Petroleum industry and trade--Political aspects--Africa.
Petroleum industry and trade--Political aspects--Cameroon.
Petroleum industry and trade--Political aspects.