Klaus, G. (1968). Was ist. Was soll. Kybernetik. Urania Verlag.
Čikaški stil citiranja (17. izdanje)Klaus, Georg. Was Ist. Was Soll. Kybernetik. Leipzig: Urania Verlag, 1968.
MLA način citiranja (8. izdanje)Klaus, Georg. Was Ist. Was Soll. Kybernetik. Urania Verlag, 1968.
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