00842nab a2200253 uc450000100070000000500170000700800410002403500110006503500210007604000130009704100080011010000350011824500670015365000240022065000380024465000270028265000250030965100280033470000310036270000340039377301320042794200100055999900190056964945920250312091728.0010301e19971201 eng a649459 a(OCoLC)819897874 ccomduadb aeng10aRamon, J. C.4auteaut928857210aGeochemical evaluation of the middle Magdalena basin, Colombia aGeoquímica932360 aMagdalena medio antioqueño9585 7aPetróleo2lemb91008 aBiomarcadores934426 7aColombia2embne987054710aDzou, L.4auteaut951958610aGiraldo, B.4auteaut93389690 tCT&F : Ciencia,Tecnología y Futuro (Bucaramanga)gVolumen 01, Número 03, Diciembre 1997, p. 47-66w116836x0122-5383070714 cARIMP c188668d188668