APA (7th ed.) Zitazioa
Timpe, K. (2012). Free will: Sourcehood and its alternatives (2nd ed.). Continuum International Pub. Group.
Chicago Style (17th ed.) Zitazioa
Timpe, Kevin. Free Will: Sourcehood and Its Alternatives. 2nd ed. New York: Continuum International Pub. Group, 2012.
MLA (9th ed.) Zitazioa
Timpe, Kevin. Free Will: Sourcehood and Its Alternatives. 2nd ed. Continuum International Pub. Group, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.