000 00300nam a2200121Ia 4500
008 221001s1969 xx 000 0 eng d
082 _a551.4 THO
100 _aThornbury, W. D.
245 0 _aPrinciples of geomorphology
260 _aNew York
_bJohn wiley
_c1969
300 _a594p.
942 _2ddc
_cBK
999 _c45648
_d45648