Cita APA (7a ed.)
(1998). Oil, gas, coal & electricity - fourth quarter 1997: Quarterly statistics. OECD/IEA.
Cita Chicago Style (17a ed.)
Oil, Gas, Coal & Electricity - Fourth Quarter 1997: Quarterly Statistics. Paris: OECD/IEA, 1998.
Cita MLA (9a ed.)
Oil, Gas, Coal & Electricity - Fourth Quarter 1997: Quarterly Statistics. OECD/IEA, 1998.
Precaución: Estas citas no son 100% exactas.