000 00269nam a22001217a 4500
999 _c338563
_d338563
020 _a8123908113
082 _a551.4
_bTHO.P
100 _aWilliam D. Thornbury
245 _aPrinciples of Geomorphology
250 _a2nd
260 _aNewDelhi
_bCBS
_c2002
942 _cBK