Eddington, A. S. The mathematical theory of relativity / A. S. Eddington. - 2nd ed. - Cambridge : At the university press, 1952. - ix, 270 p. : ill. ; 27 cm. Includes index. Bibliography : p. 264-266 324 324 Subjects--Topical Terms: Mathematical theory. Dewey Class. No.: 530.1 / E23m