Landau, L. What is the of theory relativity / L. Landau, Yu. Rumer ; translated from the Russina by A. Zdornykh. - Mascow : Mir publishers, c 1981 - 61p. : ill. ; 20x14 cm. Subjects--Topical Terms: RELATIVITY THEORY Dewey Class. No.: 530. 11 / RUM-REL