SOVIET-GERMAN COOPERATION IN THE FIELD OF HYDRO-TURBINE ENGINEERING IN THE 1920s - PDF (Russian)
Copyright (c) 2021 Ganin M.A.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2021 Ganin M.A.
This work is licensed under a Creative Commons Attribution 4.0 International License.