Category:Standard and tentative methods of sampling and testing highway materials - recommended by the Second Conference of State Highway Testing Engineers and Chemists, Washington, D.C., Feb. 23-27, 1920

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Media in category "Standard and tentative methods of sampling and testing highway materials - recommended by the Second Conference of State Highway Testing Engineers and Chemists, Washington, D.C., Feb. 23-27, 1920"

The following 8 files are in this category, out of 8 total.