Pfeiffer, P. E. (1964). Sets, events, and switching. McGraw-Hill.
Cita Chicago (17th ed.)Pfeiffer, Paul E. Sets, Events, and Switching. New York: McGraw-Hill, 1964.
Cita MLA (8th ed.)Pfeiffer, Paul E. Sets, Events, and Switching. McGraw-Hill, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.