Einstein, Albert, 1879-1955. Relativity : the special and general theory / by Albert Einstein ; translated by Robert W. Lawson. - New York : Crown Publishers, 1931. - 168 p. : ill. Bibliography, p. 161-162. LCCN: 31028437 Subjects--Topical Terms: Relativity (Physics) LC Class. No.: QC173.55 / .E384 Dewey Class. No.: 530.1