00874nas 2200289 n 450 99633642240331620230321211406.0(CKB)954928481220(CONSER) 55017213 (MiAaPQ)42111(EXLCZ)9995492848122020750824b19551990 uy aengEarth science[Falls Church, Va., etc.American Geological Institute, etc.]1 online resourcePrint version: Earth science. 0012-8228 (DLC) 55017213 (OCoLC)1567195 GeologyPeriodicalsGeology550/.5American Geological Institute.Midwest Federation of Mineralogical Societies.JOURNAL996336422403316exl_impl conversionEarth science2392127UNISA