Russell, B. (1993). Sceptical essays.
Chicago Style aipamenaRussell, Bertrand. Sceptical Essays. London, Routledge, 1993.
MLA aipamenaRussell, Bertrand. Sceptical Essays. 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Russell, B. (1993). Sceptical essays.
Chicago Style aipamenaRussell, Bertrand. Sceptical Essays. London, Routledge, 1993.
MLA aipamenaRussell, Bertrand. Sceptical Essays. 1993.