APA (7th ed.) Zitazioa
Ray, C. (1991). Time, space, and philosophy. Routledge.
Chicago Style (17th ed.) Zitazioa
Ray, Christopher. Time, Space, and Philosophy. London ; New York: Routledge, 1991.
MLA (9th ed.) Zitazioa
Ray, Christopher. Time, Space, and Philosophy. Routledge, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.