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  1. Clearing land of rocks for agricultural and other purposes / by J.R. Mattern.
    By: Mattern, J. Randall. - Institute of Makers of Explosives.
    Publication info: New York :Institute of Makers of Explosives,c1918.
    Contributed by: Library of Congress
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  2. Clearing land of stumps / [J. Randall Mattern].
    By: Mattern, J. Randall. - Institute of Makers of Explosives.
    Publication info: New York :Institute of Makers of Explosives,c1917.
    Contributed by: Library of Congress
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  3. The use of explosives for agricultural and other purposes.
    By: Institute of Makers of Explosives.
    Publication info: New York city,The Institute of makers of explosives,c1917.
    Contributed by: Library of Congress
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