Das, B. M. (1999). Principles of foundation engineering (4th.ed.). PWS.
Chicago Style citaatDas, Braja M. Principles of Foundation Engineering. 4th.ed. Pacific Grove: PWS, 1999.
MLA citatieDas, Braja M. Principles of Foundation Engineering. 4th.ed. PWS, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.