ISBN 9780691121246 books & textbook
The Collected Papers of Albert Einstein, Volume 9. (English): The Berlin Years: Correspondence, January 1919 - April 1920. (English translation of ... (Collected Papers of Albert Einstein, 9)
Einstein, Albert Hentschel, Ann M.
Princeton University Press /2004-11-14 Paperback / 384 Pages
isbn-10: 0691121249 / isbn-13: 9780691121246
