Dyfyniad APA

National Research Council (U.S.). Highway Research Board. (1961). Soil stabilization with portland cement. National Academy of Sciences-National Research Council.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Highway Research Board. Soil Stabilization with Portland Cement. Washington, D.C: National Academy of Sciences-National Research Council, 1961.

Dyfyniad MLA

National Research Council (U.S.). Highway Research Board. Soil Stabilization with Portland Cement. National Academy of Sciences-National Research Council, 1961.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.