Short description: In Russian. Voinov, Alexander Danilovich. Straight trigonometry with a collection of tasks. Pavlovsk on the Don: type. I.P. Ivanov, 1907. Pryamolineynaya trigonometriya s sobraniem zadach. In Russian /Straight-line trigonometry with a collection of tasks. 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. SKU3732743