Columbia subject headings:
Petroleum industry and trade--Argentina--Finance.
Yacimientos Petrolíferos Fiscales (Argentina)--Finance.
Harvard subject headings:
Petroleum industry and trade--Argentina--Finance.
Yacimientos Petrolíferos Fiscales (Argentina)--Finance.
Princeton subject headings:
Petroleum industry and trade--Argentina--Finance.
Yacimientos Petrolíferos Fiscales (Argentina)--Finance.