Klaus, G. (1966). Was ist. Was soll. Kybernetik. Urania Verlag.
Cita Chicago (17th ed.)Klaus, Georg. Was Ist. Was Soll. Kybernetik. Leipzig: Urania Verlag, 1966.
Cita MLA (8th ed.)Klaus, Georg. Was Ist. Was Soll. Kybernetik. Urania Verlag, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.