Report of investigations by the General Manager's Committee, Pennsylvania R. R. (5000 w.) (No. 24985 N)


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    Title :

    Experiment to determine the necessary depth of stone Ballast


    Additional title:

    Am Ry Engng Assn, Bul



    Publication date :

    1911


    Remarks:

    Ills.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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