Petri de Aquila sectatoris nobilissimarum subtilissimi Ioannis Scoti doctrinarum, libros hos sententiaru[m] quatuor quisquis enixe relegeris ...
MLA
Petrus, de Aquila, -1361, author. Petri de Aquila sectatoris nobilissimarum subtilissimi Ioannis Scoti doctrinarum, libros hos sententiaru[m] quatuor quisquis enixe relegeris .... 1480.. https://collections.library.yale.edu/catalog/32310231.
APA, 6th edition
Petrus, de Aquila, -1361, author. (1480.)[Petri de Aquila sectatoris nobilissimarum subtilissimi Ioannis Scoti doctrinarum, libros hos sententiaru[m] quatuor quisquis enixe relegeris ...]. https://collections.library.yale.edu/catalog/32310231.