Fraenkel, A. A., & Bar-Hillel, Y. (1958). Foundations of set theory. North-Holland.
Chicago Style (17th ed.) ZitazioaFraenkel, Abraham A., eta Yehoshua Bar-Hillel. Foundations of Set Theory. Amsterdam: North-Holland, 1958.
MLA (9th ed.) ZitazioaFraenkel, Abraham A., eta Yehoshua Bar-Hillel. Foundations of Set Theory. North-Holland, 1958.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.