APA-čujuhus (7. p.)
Copleston, F. C. A History of Philosophy: Medieval Philosophy : Albert the Great to Duns Scotus (5a edición.). Image Books.
Chicago-čujuhus (17. p.)
Copleston, Frederick C. A History of Philosophy: Medieval Philosophy : Albert the Great to Duns Scotus. 5a edición. Nueva York, EUA: Image Books.
MLA-čujuhus (9. p.)
Copleston, Frederick C. A History of Philosophy: Medieval Philosophy : Albert the Great to Duns Scotus. 5a edición. Image Books.
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