Relativistic mechanics; special relativity and classical particle dynamics [by] R. D. Sard. Sard, R. D., 1915- Relativistic mechanics. Dynamics of a particle. Special relativity (Physics) QA808.5 .S26 530.11 19 SAR Includes bibliographical references. New York, W. A. Benjamin, 1970. 1970. 1970 Text xxi, 376 p. eng Lecture notes and supplements in physics