WDB	Opusculu[m] Johannis de sacro busto spericum cum notabili commento atq[ue] figuris textum declarantibus vtilissimis / de Sacrobosco, Johannes *1195-1256*. - Electronic ed.. - [Leipzig] : [Landsberg], [ca. 1495] Permalink: http://diglib.hab.de/inkunabeln/171-7-quod-14/start.htm					Deutsch
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