Algorismus: ms., on parchment and paper, in Latin, German and French
MLA
Aristotle, pseud, Falconer, Willia, Rufus, Jordanu, Sacro Bosco, Joannes de, fl. 123. Algorismus: ms., on parchment and paper, in Latin, German and French. 13th-14th-mid 15th century. https://collections.library.yale.edu/catalog/2011764.
APA, 6th edition
Aristotle, pseud, & Falconer, Willia, & Rufus, Jordanu, & Sacro Bosco, Joannes de, fl. 123. (13th-14th-mid 15th century)[Algorismus: ms., on parchment and paper, in Latin, German and French]. https://collections.library.yale.edu/catalog/2011764.