000 00324nam a2200121Ia 4500
008 220505s1990 xx 000 0 und d
041 _aeng
082 _a910/THo
100 _aThornbury,William.D
_9673025
245 _aPrinciples of geomorphology
260 _adelhi
_bWiley Eastern Ltd.
_c1990
650 _aGEOGRAPHY
_9673026
999 _c464088
_d464088