000			00283nam a2200097 4500
999			_c335796 _d335796
082			_a562 _bKAU.C
100			_aKauffman, G and Hazel, Joseph E.
245			_aConcepts and Methods of Biostratigraphy _cKauffman, G and Hazel, Joseph E.
260			_aPennsylvania _c1977 _bDH&R
942			_cBK