Katz, Robert, 1917- An introduction to the special theory of relativity / Robert Katz . - Princeton, N.J. : D. Van Nostrand, 1964. - 132 p. : ill. ; 21 cm. - The Nostrand momentum book print 9. . Includes bibliographical references. Subjects--Topical Terms: Relativity (Physics).-------- Dewey Class. No.: 530.11