01013nas 2200325-a 450 991089082400332120260218112633.0(CKB)1000000000310755(CONSER)--2006240469(DE-599)ZDB3030523-8(DE-599)3030523-8(EXLCZ)99100000000031075520060410a20019999 --- -spaConversus revista del Instituto Politécnico NacionalMéxico, D.F. Instituto Politécnico Nacional1 online resourcePrint version: Conversus : 1665-2665 (DLC)--2006240469 (OCoLC)66129671 SciencePeriodicalsScienceMexicoPeriodicalsSciencePopular worksPeriodicalsScienceScienceScienceInstituto Politécnico Nacional (Mexico)JOURNAL9910890824003321exl_impl conversionConversus4248546UNINA