Short description: In Russian. Berzhets, Georgy Nikolaevich. Basics of Classification and Calculation of Drilling Rig Parameters. Moscow: Subsoil, 1968. Osnovy klassifikatsii i rascheta parametrov burovykh ustanovok. In Russian /Basics for classifying and calculating rig parameters . 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. SKU5968677