Short description: In Russian. Bubnov, Sergey Fedorovich. In relation to rational heating and ventilation. type. V.V. Isleneva. K voprosu o ratsional'nom ustroystve otopleniya i ventilyatsii. In Russian /In relation to rational heating and ventilation. 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. SKU4667407