Cita APA (7th ed.)
Das, B. M. (2004). Principles of foundation engineering (5th ed.). Thomson/Brooks/Cole.
Cita Chicago (17th ed.)
Das, Braja M. Principles of Foundation Engineering. 5th ed. Pacific Grove, CA: Thomson/Brooks/Cole, 2004.
Cita MLA (9th ed.)
Das, Braja M. Principles of Foundation Engineering. 5th ed. Thomson/Brooks/Cole, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.