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  • Journals, Magazines, Newspapers; Microforms

    Pennsylvania anthracite weekly

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    Minerals today

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    Kyanite and related minerals in ..

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    Helium resources of the United States

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    Boron in ...

    Boron in ... (Washington, D.C. : 1981)
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    Gypsum

    Gypsum (Monthly)
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    Dimension stone in ..

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    Fuel oils by sulfur content

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    Petroleum statement

  • Journals, Magazines, Newspapers; Microforms

    Injury experience in coal mining