APA (7th ed.) Citation

Grant, E. L., Ireson, W. G., & Leavenworth, R. S. (1976). Principles of engineering economy (6th ed.). Wiley.

Chicago Style (17th ed.) Citation

Grant, Eugene Lodewick, William Grant Ireson, and Richard S. Leavenworth. Principles of Engineering Economy. 6th ed. New York: Wiley, 1976.

MLA (9th ed.) Citation

Grant, Eugene Lodewick, et al. Principles of Engineering Economy. 6th ed. Wiley, 1976.