TY - GEN AU - Burggraf, Fred, Ed. AU - Ward, Elmer M., Ed. AU - Orland, Herbert P., Ed. TI - Non-destructive dynamic testing of soils and highway pavements U1 - 625.7 PY - 1960/// CY - Washington, D.C. PB - Highway Research Board KW - Road Construction -- Collected Works N1 - Publication 815 ER -