تعداد ۱ پاسخ غیر تکراری از ۱ پاسخ تکراری در مدت زمان ۸,۳۳ ثانیه یافت شد.

1. OPEC, its member states and the world energy market

پدیدآورنده : compiled and written by John Evans

کتابخانه: State Department Library (Tehran)

موضوع : Petroleum industry and trade,Gas industry,Organization of Petroleum Exporting Countries

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