WDB	Sphaera mundi : hoc est, Elementa cosmographiae, legibus logicis / Ryff, Peter *1552-1629*. - Online-Ausg.. - Basileae : Ostenius, 1593 Permalink: http://diglib.hab.de/drucke/alv-mh-209-4s/start.htm					Deutsch
--- select display type--- Facsimile	Digital library	Bibliographic description	How to quote?	Citations	Download | Order CD	Usage Notices