Klaus, G., Liebscher, H., & Seyferth, H. (1968). Was ist. Was soll. Kybernetik (3. Auflage (19.-26. Tausend).). Urania Verlag.
Citazione stile Chigago Style (17a edizione)Klaus, Georg, Heinz Liebscher, e Hasso Seyferth. Was Ist. Was Soll. Kybernetik. 3. Auflage (19.-26. Tausend). Leipzig ; Jena ; Berlin: Urania Verlag, 1968.
Citatione MLA (8a ed.)Klaus, Georg, et al. Was Ist. Was Soll. Kybernetik. 3. Auflage (19.-26. Tausend). Urania Verlag, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.