Das, B. M. (2002). Principles of geotechnical engineering (5th ed.). Brooks Cole/Thompson Learning.
Chicago Style (17. basım) AtıfDas, Braja M. Principles of Geotechnical Engineering. 5th ed. Pacific Grove, Calif: Brooks Cole/Thompson Learning, 2002.
MLA (9th ed.) AtıfDas, Braja M. Principles of Geotechnical Engineering. 5th ed. Brooks Cole/Thompson Learning, 2002.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..