Cita APA (7th ed.)

Klaus, G. (1971). Was ist. Was soll. Kybernetik. Urania Verlag.

Cita Chicago (17th ed.)

Klaus, Georg. Was Ist. Was Soll. Kybernetik. Leipzig: Urania Verlag, 1971.

Cita MLA (8th ed.)

Klaus, Georg. Was Ist. Was Soll. Kybernetik. Urania Verlag, 1971.