APA (7th ed.) Zitazioa
Tichý, P. (1988). The foundations of Frege's logic. de Gruyter.
Chicago Style (17th ed.) Zitazioa
Tichý, Pavel. The Foundations of Frege's Logic. Berlin ; New York: de Gruyter, 1988.
MLA (9th ed.) Zitazioa
Tichý, Pavel. The Foundations of Frege's Logic. de Gruyter, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.