Não informado. (1971). QUARTERLY ECONOMIC REVIEW OF OIL IN THE FAR EAST AND AUSTRALASIA. Economist Intelligence Unit.
Lua i Stíl Chicago (17ú heag.)Não informado. QUARTERLY ECONOMIC REVIEW OF OIL IN THE FAR EAST AND AUSTRALASIA. London: Economist Intelligence Unit, 1971.
Lua MLA (8ú heag.)Não informado. QUARTERLY ECONOMIC REVIEW OF OIL IN THE FAR EAST AND AUSTRALASIA. Economist Intelligence Unit, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.