Biblioteca Apostolica Vaticana
- Biblioteca Apostolica Vaticana published the following 2 sources, containing a total of 14 diagrams.
- Burley, Walter. 1301–1500. Expositio super libris Perihermenias. Vatican City: Biblioteca Apostolica Vaticana. (10 diagrams)
- Buridan, John. 1301–1400. Summulae de Dialectica. Vatican City: Biblioteca Apostolica Vaticana. (4 diagrams)