Não informado. (1976). Quarterly oil statistics. Organization for Economic Co-operation and Development.
Čikaški stil citiranja (17. izdanje)Não informado. Quarterly Oil Statistics. Paris: Organization for Economic Co-operation and Development, 1976.
MLA način citiranja (8. izdanje)Não informado. Quarterly Oil Statistics. Organization for Economic Co-operation and Development, 1976.
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