@misc{Sacro_Bosco_Joannes_de_(c._1195_–_1256)_Ioannis,
 author={Sacro Bosco, Joannes de (c. 1195 – 1256)},
 howpublished={online},
 publisher={Kreutzer, Veit (?-1578)},
 language={lat},
 type={starodruk},
 title={Ioannis De Sacrobusto Libellus De Sphaera: Accessit Eiusdem Autoris Computus Ecclesiasticus, Et alia quaedam in studiosorum gratiam edita. Cum Praefatione Philippi Melanthonis.},
 keywords={Claudius Ptolemaeus (ca 100-ca 168), Achilles Pirmin Gasser (1505-1577), astronomia 13w., astronomia 15w., podręczniki},
}