Leveson, J. H.
Electronic business machines - 1st ed. - London Heywood 1959 - 272 p. illus. 22 cm.
Electronic data processing
651.264 / LEV/1959
Electronic business machines - 1st ed. - London Heywood 1959 - 272 p. illus. 22 cm.
Electronic data processing
651.264 / LEV/1959