Johnson, P. E. (1972). A history of set theory. Prindle, Weber & Schmidt.
Chicago Style aipamenaJohnson, Phillip E. A History of Set Theory. Boston: Prindle, Weber & Schmidt, 1972.
MLA aipamenaJohnson, Phillip E. A History of Set Theory. Prindle, Weber & Schmidt, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.