Jacob K.F. Logic. Hypothesis, its nature and role in science and philosophy. /Zhakov K.F. Logika. Gipoteza, ee priroda i rol' v nauke i v filosofii. Convolute from 2 books. ill.-Pg. 1912, 1915. 168s. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalbad612d8a97e1f044