Johannes de Sacrobosco - Works

Works

  • Tractatus de Sphæra
  • Algorismus, or De Arte Numerandi, printed without date or place, and at Vienna, 1517, by Hieronymus Vietor; Cracow, 1521 or 1522; and Venice, 1523
  • De Anni Ratione, or De Computo Ecclesiastico, printed, Paris, 1550, 1572, 8vo.

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