Ashby, W. R. (1956). An introduction to cybernetics. John Wiley.
Cita Chicago (17th ed.)Ashby, W. Ross. An Introduction to Cybernetics. Nueva York: John Wiley, 1956.
Cita MLA (9th ed.)Ashby, W. Ross. An Introduction to Cybernetics. John Wiley, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.