APA (7th ed.) Citation

GRANT, E. L., IRESON, W. G., & Leavenworth, R. S. (1976). Principles of engineering economy (6a edición.). Ronald Press.

Chicago Style (17th ed.) Citation

GRANT, Eugene Lodewick, William Grant IRESON, and Richard S. Leavenworth. Principles of Engineering Economy. 6a edición. New York: Ronald Press, 1976.

MLA (9th ed.) Citation

GRANT, Eugene Lodewick, et al. Principles of Engineering Economy. 6a edición. Ronald Press, 1976.