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National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Meeting, Subgrades and Bases National Research Council (U.S.). Highway Research Board. Committee on Compaction of Embankments, agus National Research Council (U.S.). Highway Research Board. Committee on Stress Distribution in Earth Masses. Soil Compaction: 5 Reports ; Presented at the 42nd Annual Meeting, January 7-11, 1963. Washington, D.C: Highway Research Board of the Division of Engineering and Industrial Research, National Academy of Sciences-National Research Council, 1963.

National Research Council (U.S.). Highway Research Board, et al. Soil Compaction: 5 Reports ; Presented at the 42nd Annual Meeting, January 7-11, 1963. Highway Research Board of the Division of Engineering and Industrial Research, National Academy of Sciences-National Research Council, 1963.