Elton, D. J. (2015). Grounded!: Amazing classroom demonstrations in soil mechanics. American Society of Civil Engineers.
Citace podle Chicago (17th ed.)Elton, David J. Grounded!: Amazing Classroom Demonstrations in Soil Mechanics. Reston, Virginia: American Society of Civil Engineers, 2015.
Citace podle MLA (9th ed.)Elton, David J. Grounded!: Amazing Classroom Demonstrations in Soil Mechanics. American Society of Civil Engineers, 2015.
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