Grant, Eugene L. (Eugene Lodewick), 1897- Principles of engineering economy/ Eugene L. Grant, W. Grant Ireson, Richard S. Leavenworth. - Seventh edition, - New York: Wiley, 1982. - x,687 pages: illustrations; 24 cm. Bibliography: p662-668. - Includes index. ISBN: 047106436X Subjects--Topical Terms: Engineering economy--United States.