Relativity for the layman : a simplified account of the history, theory, and proofs of relativity / by James A. Coleman, Illustrated by the author. Coleman, James A. (James Andrew), 1921- Relativity (Physics) QC6 .C63 1959 530.1109 COR Includes index. New York, Macmillan c1958. c1958. 1959 Text ix,127 p. eng