Elton, D. J. (2015). Grounded!: Amazing classroom demonstrations in soil mechanics. American Society of Civil Engineers. https://doi.org/10.1061/9780784413920
Chicago-viite (17. p.)Elton, David J. Grounded!: Amazing Classroom Demonstrations in Soil Mechanics. Reston, Virginia: American Society of Civil Engineers, 2015. https://doi.org/10.1061/9780784413920.
MLA-viite (9. p.)Elton, David J. Grounded!: Amazing Classroom Demonstrations in Soil Mechanics. American Society of Civil Engineers, 2015. https://doi.org/10.1061/9780784413920.
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