(1979). Technical Guidelines For Expansive Soils in Haghway Subgrades. Federal Highway Administration.
Chicago-viite (17. p.)Technical Guidelines For Expansive Soils in Haghway Subgrades. Federal Highway Administration, 1979.
MLA-viite (8. p.)Technical Guidelines For Expansive Soils in Haghway Subgrades. Federal Highway Administration, 1979.
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