Grant, Eugene L. 1897-1996. Principles of engineering economy [by] Eugene L. Grant [and] W. Grant Ireson. - 5th ed. - New York, Ronald Press Co. [1970] - viii, 640 p. illus. 24 cm. Bibliography: p. 629-633. LCCN: 74110548 Subjects--Topical Terms: Engineering economy. LC Class. No.: TA177.4 / .G7 1970 Dewey Class. No.: 658.1