APA-viite (7. p.)

Piazza, T. (2007). A priori knowledge: Toward a phenomenological explanation. Ontos Verlag.

Chicago-viite (17. p.)

Piazza, Tommaso. A Priori Knowledge: Toward a Phenomenological Explanation. Frankfurt ; New Brunswick: Ontos Verlag, 2007.

MLA-viite (9. p.)

Piazza, Tommaso. A Priori Knowledge: Toward a Phenomenological Explanation. Ontos Verlag, 2007.