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Petroleum coke an economic survey of its production and use
- "Removal of petroleum coke from Dubbs stills"@en
- "Removal of petroleum coke from Dubbs stills"
- "Petroleum coke an economic survey of its production and use"@en
- "Petroleum coke economic survey of its production and uses"@en
- "Petroleum coke : an economic survey of its production and uses"
- "Petroleum coke, an economic survey of its production and uses, by E. B. Swanson"