00293nam a2200109   450000100070000000500170000700800360002410000330006024500540009325000110014726400250015801015820260807101604.0260101s1980    pe      000 0 spa  d1 aCarlos Radicati di Primeglio10aEl Sistema Contable de los Incas : yupana y quipu  a1a ed. 1aLimabUniversoc1980