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Natural hydrocarbons : Gilsonite, elaterite, wu...

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Natural hydrocarbons : Gilsonite, elaterite, wurtzilite, grahamite, ozokerite and others

Author / Creator: United States. Department of Commerce
Available as: Online

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Format: Books
Language: English
Publication: [Washington] : [publisher not identified], 1920
Series: ProQuest U.S. Executive Branch Documents, 1910-1932 ; I28.23-2121
Physical Details: 1 online resource (12 pages)

For related series, see C22.12-2693 to C22.12-3198.

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Asphalt.
Mines and mineral resources.

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Natural hydrocarbons : Gilsonite, elaterite, wurtzilite, grahamite, ozokerite and others

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