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BenvenutusStracchaDemercaturadecisiones MG .tif PDArt DVorm Peace Palace Library collection Benvenutus Straccha De mercatura decisiones et tractatus varii et de rebus ad eam pertinentibus in quibus omnium authorum prcipue Benevenuti Stracchae qui de mercatura scripsere tractatus librique continentur tum eorum etiam quae in praxim