00340nam a22001337a 450000500170000002000220001708200180003910000170005724500580007425000120013226000320014430000190017650000110019520260430073653.0  a053438742x (pbk.)  a624.15136 DAS  aDas,Braja M.  aPrinciples of Geotechnical ngineering /cBraja M Das.  a5th ed.  aBanglore :bThomson,c2006.  axx,567p.bill.  aindex.