000 00274nam a2200133Ia 4500
100 _aSparks,B.W.
365 _b30
942 _cBK
654 _a
245 _aGeomorphology
260 _aLondon
_bLongmans Green & Company
_c1960
082 _a551.4
300 _bHb
_axx,371
999 _c395670
_d395670
041 _aeng