Das, B. M. (2002). Principles of geotechnical engineering. Thomson Learning.
Lua i Stíl Chicago (17ú heag.)Das, Braja M. Principles of Geotechnical Engineering. Thomson Learning, 2002.
Lua MLA (8ú heag.)Das, Braja M. Principles of Geotechnical Engineering. Thomson Learning, 2002.
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