APA-viite (7. p.)
Burlaeus, G., & Spade, P. V. (2000). On the purity of the art of logic: The shorter and the longer treatises. Yale University Press.
Chicago-viite (17. p.)
Burlaeus, Gualterus, ja Paul Vincent Spade. On the Purity of the Art of Logic: The Shorter and the Longer Treatises. New Haven: Yale University Press, 2000.
MLA-viite (9. p.)
Burlaeus, Gualterus, ja Paul Vincent Spade. On the Purity of the Art of Logic: The Shorter and the Longer Treatises. Yale University Press, 2000.
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