Spiegel, M. R. (1965). Set Theory: And Related Topics. McGraw-Hill.
Cita Chicago (17th ed.)Spiegel, Murray R. Set Theory: And Related Topics. New York: McGraw-Hill, 1965.
Cita MLA (9th ed.)Spiegel, Murray R. Set Theory: And Related Topics. McGraw-Hill, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.