Einstein's theory of relativity.
- Rev. ed. / prepared with the collaboration of Gunther Leibfried and Walter Biem. Rev. ed. / prepared with the collaboration of Gunther Leibfried and Walter Biem.
- New York : Dover Publications, [1965]
"This new Dover edition, first published in 1962, is a revised and enlarged version of the work published by Methuen Company in 1924."