Einstein A. On the Physical Nature of Space. In Russian (ask us if in doubt)/Eynshteyn A. O fizicheskoy prirode prostranstva.With the authors preface to the Russian edition. Translation from German G. B. Itelson. Berlin. Book publishing house SLOVO. 1922. 52 p. 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. SKUalb3bc431712f5da27d