Das, B. M. (1999). Principles of foundation engineering (4th ed.). PWS Pub.
Chicago Style (17. basım) AtıfDas, Braja M. Principles of Foundation Engineering. 4th ed. Pacific Grove, Calif: PWS Pub, 1999.
MLA (9th ed.) AtıfDas, Braja M. Principles of Foundation Engineering. 4th ed. PWS Pub, 1999.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..