Short description: In Russian. Pokrovsky, Nikolai Borisovich. Calculation and Measurement of Speech Recognition. Moscow: Svyazizdat, 1962. Raschet i izmerenie razborchivosti rechi. In Russian /Calculation and measurement of speech legibility . 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. SKU6455338