Columbia subject headings:
Energy policy--Brazil.
PAULIPETRO--Consórcio CESP/IPT.
Petroleum industry and trade--Brazil.
Petróleo Brasileiro, S.A.
Harvard subject headings:
Energy policy--Brazil
PAULIPETRO--Consórcio CESP/IPT.
Petroleum industry and trade--Brazil
Petróleo Brasileiro, S.A.
Princeton subject headings:
PAULIPETRO--Consórcio CESP/IPT.
Petroleum industry and trade--Brazil.
Petróleo Brasileiro, S.A.