Drooyan, Irving, Elementary algebra for college students [by] Irving Drooyan [and] William Wooton. - 3d ed. - New York Wiley [1971, c1972] - x, 298 p. illus. 25 cm. ISBN: 047122250X LCCN: 78165828 Subjects--Topical Terms: Algebra LC Class. No.: QA152 / .D72 1972 Dewey Class. No.: 512