Ellis, John P. The theory and operation of the slide rule. - New York Dover Publications [1961] - x, 289 p. illus. 21 cm. - Dover books on science, S727 . LCCN: 61001618 /L Subjects--Topical Terms: Slide-rule LC Class. No.: QA73 / .E4 1961 Dewey Class. No.: 510.7823