The Principle of Relativity: a Collection of Original Memoirs on the Special and General Theory of Relativity
This collection of original papers on the special and general theories of relativity is an unabridged translation of the 4th edition of Das Relativitatsprinzip, together with a revised edition of an additional paper by H.A. Lorentz.
Dover Publications, c. 1975.
ISBN: 9780486600819. 216 pp.
Softcover. Very good.