000			00284nam a2200133Ia 4500
008			220613s9999||||xx |||||||||||||| ||und||
100			_aArthur N Strahler
245		0	_aPhysical Geology
250			_a1981
260			_bHARPER & ROW
300			_a612
650			_aOther
942			_cGB
999			_c3162 _d3162