National Research Council (U.S.). Highway Research Board. (1953). Soil temperature and ground freezing: Presented at the Thirty-second Annual Meeting, January 13-16, 1953. Highway Research Board.
Cita Chicago (17th ed.)National Research Council (U.S.). Highway Research Board. Soil Temperature and Ground Freezing: Presented at the Thirty-second Annual Meeting, January 13-16, 1953. Washington, D.C: Highway Research Board, 1953.
Cita MLA (9th ed.)National Research Council (U.S.). Highway Research Board. Soil Temperature and Ground Freezing: Presented at the Thirty-second Annual Meeting, January 13-16, 1953. Highway Research Board, 1953.
Atenció: Aquestes cites poden no estar 100% correctes.