000			00554 a2200181 4500
082			_a551.712 _bP744c
100			_aPonnamperuma, Cyril
245	1		_aCHEMICAL EVOLUTION OF THE EARLY PRE-CAMBRIAN
260			_aNew York _bAcademic Press _c1977
300			_a221
500			_aIncludes References
500			_aOrganized By The Laboratory Of Chemical Evolution, University Of Maryland
650			_aGeology, Stratigraphic -- Pre-Cambrian
650			_aPaleontology -- Precambrian
650			_aGeochemistry
964			_gCIRC
997			_aA62379 C
999			_c463499 _d463499