Bowles, J. E. (1992). Engineering properties of soils and their measurement (4th ed.). New York: McGraw-Hill.
Παραπομπή Chicago StyleBowles, Joseph E. Engineering Properties of Soils and Their Measurement. 4th ed. New York: McGraw-Hill, 1992.
Παραπομπή MLABowles, Joseph E. Engineering Properties of Soils and Their Measurement. 4th ed. New York: McGraw-Hill, 1992.
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