Não informado. (1976). Quarterly oil statistics. Organization for Economic Co-operation and Development.
Chicagoスタイル(17版)引用形式Não informado. Quarterly Oil Statistics. Paris: Organization for Economic Co-operation and Development, 1976.
MLA(8版)引用形式Não informado. Quarterly Oil Statistics. Organization for Economic Co-operation and Development, 1976.
警告: この引用は必ずしも正確ではありません.