Cite

De sphaera, etc

MLA

Sacro Bosco, Joannes de, active 1230. De sphaera, etc. [between 1400 and 1450]. https://collections.library.yale.edu/catalog/10803566.

APA, 6th edition

Sacro Bosco, Joannes de, active 1230. ([between 1400 and 1450])[De sphaera, etc]. https://collections.library.yale.edu/catalog/10803566.