Snethen, D. R. (1979). Technical guidelines for expansive soils in highway subgrades: Final report ; prepared for Federal Highway Administration, Offices of Research and Development, Materials Division. National Technical Information Service.
Chicago-Zitierstil (17. Ausg.)Snethen, Donald R. Technical Guidelines for Expansive Soils in Highway Subgrades: Final Report ; Prepared for Federal Highway Administration, Offices of Research and Development, Materials Division. Springfield, Va: National Technical Information Service, 1979.
MLA-Zitierstil (9. Ausg.)Snethen, Donald R. Technical Guidelines for Expansive Soils in Highway Subgrades: Final Report ; Prepared for Federal Highway Administration, Offices of Research and Development, Materials Division. National Technical Information Service, 1979.