Hopfe, Manfred W. Mathematics, foundations for business Manfred W. Hopfe. - Chicago Science Research Associates c1980. - xiii, 651 p. ill. 25 cm. Includes index. ISBN: 0574193855 16.95 LCCN: 79024148 //r89 Subjects--Topical Terms: MathematicsBusiness mathematics LC Class. No.: QA39.2 / .H635 Dewey Class. No.: 510