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International petroleum encyclopedia
McCaslin, John, (1975)
Outlook for OPEC member countries in downstream operations
Spitz, Peter H., (1979)
The probable impact on the U.S. petrochemical industry of the expanding petrochemical industries in the conventional-energy-rich nations : final report on investigation no. 332-137 under section 332(b) of the Tariff Act of 1930
Gersic, John J., (1983)