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  1. 1

    World sulphur survey. nork Sheldrick, William F.

    Argitaratua 1984
    Liburua

    World sulphur survey.
  2. 2

    World sulphur supply and demand 1960-1980.

    Argitaratua 1973
    Liburua

    World sulphur supply and demand 1960-1980.
  3. 3

    The economics of the sulphur industry nork Hazleton, Jared E.

    Argitaratua 1970
    Liburua

    The economics of the sulphur industry
  4. 4

    Brimstone the stone that burns; the story of the Frasch sulphur industry nork Haynes, Williams 1886-

    Argitaratua 1959
    Liburua

    Brimstone the stone that burns; the story of the Frasch sulphur industry

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