Bumby, Douglas R. Mathematics : a topical approach : course 1 / Douglas R. Bumby, Richard J. Klutch. - xii, 449 pages : illustrations ; 24 cm Includes index. ISBN: 0675057531 Subjects--Topical Terms: Mathematics. LC Class. No.: QA39.2 / .B83 1982 Dewey Class. No.: 510