Short description: In Russian. Kudrevich, Boris Ivanovich. Echo Lot of the British Admiralty for shallow depths. Leningrad: Hydrographic regulation, 1929: type. Hydrographic regulation of RKA forces. 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. SKU9209795