Short description: In Russian. Kogan, Valentina Solomonovna. Automatic telegraph switching stations. Moscow: Communications, 1970. Avtomaticheskie telegrafnye kommutatsionnye stantsii. In Russian /Automatic telegraph exchanges. The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU7402192