Não informado. (1978). QUARTERLY ECONOMIC REVIEW OF BAHRAIN, QATAR, OMAN, THE YEMENS. Economist Intelligence Unit.
Lua i Stíl Chicago (17ú heag.)Não informado. QUARTERLY ECONOMIC REVIEW OF BAHRAIN, QATAR, OMAN, THE YEMENS. London: Economist Intelligence Unit, 1978.
Lua MLA (8ú heag.)Não informado. QUARTERLY ECONOMIC REVIEW OF BAHRAIN, QATAR, OMAN, THE YEMENS. Economist Intelligence Unit, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.