000 00284nam a22001337a 4500
999 _c1608
_d1608
020 _a0852268858
082 _a551.48
100 _aWilliam D Thornbury
245 _aPrinciples of geomorphology
250 _a2nd
260 _aNew Delhi
_bNew Age
_c1969
300 _a594
942 _cBK