Cite

Algorismus, etc

MLA

Sacro Bosco, Joannes de, fl. 1230. Algorismus, etc. [between 1300 and 1450]. https://collections.library.yale.edu/catalog/2011764.

APA, 6th edition

Sacro Bosco, Joannes de, fl. 1230. ([between 1300 and 1450])[Algorismus, etc]. https://collections.library.yale.edu/catalog/2011764.