International Energy Agency. (1979). Crude oil import prices, 1973-1978: Evolution des prix a l'importation du petrole brut entre 1973 et 1978. Organisation for Economic Co-operation and Development.
Lua i Stíl Chicago (17ú heag.)International Energy Agency. Crude Oil Import Prices, 1973-1978: Evolution Des Prix a L'importation Du Petrole Brut Entre 1973 Et 1978. [Paris]: Organisation for Economic Co-operation and Development, 1979.
Lua MLA (9ú heag.)International Energy Agency. Crude Oil Import Prices, 1973-1978: Evolution Des Prix a L'importation Du Petrole Brut Entre 1973 Et 1978. Organisation for Economic Co-operation and Development, 1979.
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