000			00274nam a2200121Ia 4500
020			_a0072904437
082			_a551 _bPLU
100			_aCharles C.Plummer
245			_aPsysical geology _cCharles C.Plummer
260			_aNew York _bMc Graw Hill _c551
300			_a575
942			_cBK
999			_c9683 _d9683