Cita APA (7a ed.)

Knuuttila, S. (1993). Modalities in medieval philosophy ([1st pub.].). Routledge.

Cita Chicago Style (17a ed.)

Knuuttila, Simo. Modalities in Medieval Philosophy. [1st pub.]. London [etc.]: Routledge, 1993.

Cita MLA (9a ed.)

Knuuttila, Simo. Modalities in Medieval Philosophy. [1st pub.]. Routledge, 1993.