Training in Technology. (2000). Controlled Systems / Control Circuits (sách photo ) (In lần thứ 1.). Germany: HPS SystemTechnik.
Chicago-tyylinen lähdeviittausTraining in Technology. Controlled Systems / Control Circuits (sách Photo ). In lần thứ 1. Germany: HPS SystemTechnik, 2000.
MLA-viiteTraining in Technology. Controlled Systems / Control Circuits (sách Photo ). In lần thứ 1. Germany: HPS SystemTechnik, 2000.
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