• 1 Special Collections (Memorial Library)

• 8 Microforms

• 21 Isagoge
• 20 Aristotle
• 12 Categoriae
• 6 Logic
• 5 Neoplatonism
• 4 Plotinus
• 3 Christianity
• 3 Criticism and interpretation
• 2 Against the Christians
• 2 Commentaries
• 2 Duns Scotus, John, approximately 1266-1308
• 2 Gilbert, de La Porrée, approximately 1075-1154
• 2 Life of Plotinus
• 2 Metaphysics
• 2 Organon
• 2 Plato
• 1 Abū al-Faraj ʻAbd Allāh ibn al-Tayyib, -1043
• 1 Augustine, of Hippo, Saint, 354-430
• 1 Boethius, -524
• 1 Categories (Philosophy)
• 1 Church history
• 1 Commentarius in Claudii Ptolemaei Harmonica
• 1 Commixtae quaestiones
• 1 Comparative linguistics

• 7 Porphyry, approximately 234-approximately 305
• 6 Pius XII Memorial Library
• 3 Busse, Adolf, 1856-
• 3 David, the Invincible
• 2 Abū al-Faraj ʻAbd Allāh ibn al-Tayyib, -1043
• 2 Altheim, Franz, 1898-1976
• 2 Averroës, 1126-1198
• 2 Boethius, -524
• 2 Burlaeus, Gualterus, 1275-1345?
• 2 Davidson, Herbert A. (Herbert Alan), 1932-2021
• 2 Duns Scotus, John, approximately 1266-1308
• 2 Dörrie, Heinrich, 1911-1983
• 2 Elias (Philosopher)
• 2 Gyekye, Kwame
• 2 Moody, Ernest A. (Ernest Addison), 1903-1975
• 2 William, of Ockham, approximately 1285-approximately 1349
• 1 Alexanderson, Bengt, 1932-
• 1 Ammonius, Hermiae
• 1 Anatoli, Jacob ben Abba Mari ben Samson, active 13th century
• 1 Andreae, Antonius, -approximately 1320
• 1 Andreas, Antonius, O. F. M
• 1 Andreas, Antonius, O.F.M
• 1 Argyropoulos, Iōannēs, -1486
• 1 Aristotle
• 1 Arzhanov, I︠U︡. N. (I︠U︡riĭ Nikolaevich)

• 21 Latin
• 17 English
• 8 German
• 7 Greek, Ancient (to 1453)
• 5 French
• 4 Italian
• 3 Spanish
• 2 Arabic
• 2 Greek, Modern (1453-)
• 2 Undetermined
• 1 Hebrew

• 1 Greece
• 1 Rome
• 1 Spain
• 1 Sun

• 11 Early works to 1800
• 1 Bibliography
• 1 Biography
• 1 Comparative studies
• 1 Congresses
• 1 Controversial literature
• 1 Folklore
• 1 Informational works
• 1 Sources
• 1 Translations into Italian

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