Iordanus Nemorarius -1235. (1978). Jordanus de Nemore and the mathematics of astrolabes: De plana spera: An ed. with introd., transl. and commentary. Pontifical Inst. of Mediaeval Studies.
Chicago-Zitierstil (17. Ausg.)Iordanus Nemorarius -1235. Jordanus De Nemore and the Mathematics of Astrolabes: De Plana Spera: An Ed. with Introd., Transl. and Commentary. Toronto: Pontifical Inst. of Mediaeval Studies, 1978.
MLA-Zitierstil (9. Ausg.)Iordanus Nemorarius -1235. Jordanus De Nemore and the Mathematics of Astrolabes: De Plana Spera: An Ed. with Introd., Transl. and Commentary. Pontifical Inst. of Mediaeval Studies, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.