WDB	Johannis de sacro busto spericum opusculu[m] vnacum vtilissimis figuris textu[m] declara[n]tibus / de Sacrobosco, Johannes *1195-1256*. - Electronic ed.. - [Leipzig] : [Drucker des Capotius], [1486-1489] Permalink: http://diglib.hab.de/inkunabeln/16-1-astron-3/start.htm					Deutsch
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