Cita APA (7th ed.)
Riggs, J. L., Bedworth, D. D., & Randhawa, S. U. (2009). Engineering economics (4th ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Riggs, James L., David D. Bedworth, i Sabah U. Randhawa. Engineering Economics. 4th ed. New York: McGraw-Hill, 2009.
Cita MLA (9th ed.)
Riggs, James L., et al. Engineering Economics. 4th ed. McGraw-Hill, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.