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Pacioli Summa de arithmetica geometria .jpeg Book Pacioli Luca Summa de arithmetica geometria In Tusculano lat it Summa de arithmetica geometria Proportioni et proportionalit nouamente impressa in Toscolano Continentia de tutta l'opera De numeri misure in tutti modi occurrenti Proportioni proportionalita notitia del de Euclide