Summa totius logicae (excerpt: part I, De terminis)
(lat.)
at Bibliotheca Virtualis
[home.riise.hiroshima-u.ac.jp/~akyah59/ock.sl_1index.html]

Summa totius logicae (excerpt: part II, De propositionibus)
(lat.)
at Bibliotheca Virtualis
[home.riise.hiroshima-u.ac.jp/~akyah59/ock.sl_2index.html]

Summa totius logicae (excerpt: part III-1, De syllogismo simpliciter)
(lat.)
at Bibliotheca Virtualis
[home.riise.hiroshima-u.ac.jp/~akyah59/ock.sl_3_1index.html]

Summa logicae (excerpt: part I)
(engl.: P.V. Spade)
at Bibliotheca Virtualis
[pvspade.com//Logic/docs/ockham.pdf]

Summa logicae (excerpt: part III.3.46, De insolubilibus)
(engl.: P.V. Spade)
at Bibliotheca Virtualis
[pvspade.com//Logic/docs/OckhamInsolubilia.pdf]

Summa logicae (excerpt: part III-2, ch. 17)
(engl.: P.V. Spade)
at Bibliotheca Virtualis
[www.nd.edu/~afreddos/translat/ocsl3217.htm]