000 00334nam a2200133Ia 4500
008 221001s1969 xx 000 0 eng d
082 _a551.4 THO
100 _aThornbury, William D.
245 0 _aPrinciples of geomorphology
250 _a2nd ed.
260 _aNew York
_bJohn Wiley
_c1969
300 _axi, 594p.
942 _2ddc
_cBK
_08
999 _c2563
_d2563