Grant Eugene Lodewick 1897 Principles of engineering economy / Eugene L. Grant, W. Grant Ireson, Richard S. Leavenworth. - 6th ed. - New York : Wiley, c1976. - vi, 624 p. : ill. ; 25 cm. Includes index. Bibliography: p. 613-617. ISBN: 0471066656 Subjects--Topical Terms: Engineering economy LC Class. No.: HC79.P53 Dewey Class. No.: 338.4762