Columbia subject headings:
Biblioteca apostolica vaticana. Manuscript. Vat. Lat. 946.
Logic, Medieval.
Logic--Early works to 1800.
Harvard subject headings:
Biblioteca apostolica vaticana. Manuscript. Vat. Lat. 946.
Logic, Medieval.
Logic--Early works to 1800
Princeton subject headings:
Logic--Early works to 1800.