00504cam a22001931 4500 sa 66005907 DLC 20260227112252.0 800804s1965 ii 000 0 eng sa 66005907 (OCoLC)6583654 DLC PPT DLC QC6 .R28 530.11 Ray, M. (Manohar), 1908- Theory of relativity: special and general, by M. Ray. Delhi, S. Chand, 1965. 251 p. 24 cm. 70199 70199