Short description: In Russian. Rybkin, Nikolai Alexandrovich. A textbook of rectilinear trigonometry and a collection of tasks. Ivanovo-Voznesensk: The Basis, 1922. 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. SKU9171345