Short description: In Russian. Polshkov, Mikhail Konstantinovich. Theory of analog and digital seismic-exploration equipment. Moscow: Nedra, 1973. Teoriya analogovoy i tsifrovoy seysmo-razvedochnoy apparatury. In Russian/Analog and Digital Seismic Instrumentation Theory. 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. SKU7328861