Search Results - O'Neill, Leo J.

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    Nonmetallic minerals needed for national defense : 2. abrasives / by O'Neill, Leo J.

    Published 1941
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    Government Document Book

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  2. 2
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    Nonmetallic minerals needed for national defense : 4. Building materials / by O'Neill, Leo J.

    Published 1941
    Search for the full-text version of this title in HathiTrust
    Government Document Book

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