Knuuttila, S. (1988). Modern modalities: Studies of the history of modal theories from Medieval nominalism to logical positivism. Synthese <Dordrecht> / Historical library.
Παραπομπή σε μορφή Chicago (17η εκδ.)Knuuttila, Simo. "Modern Modalities: Studies of the History of Modal Theories from Medieval Nominalism to Logical Positivism." Synthese <Dordrecht> / Historical Library 1988.
Παραπομπή σε μορφή MLA (9th εκδ.)Knuuttila, Simo. "Modern Modalities: Studies of the History of Modal Theories from Medieval Nominalism to Logical Positivism." Synthese <Dordrecht> / Historical Library, 1988.
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