Cita APA (7th ed.)
Riggs, J. L., & Bedworth, D. D. (2011). Engineering economics (4th ed.). Tata McGraw-Hill.
Cita Chicago (17th ed.)
Riggs, James L., i David D/Randhawa Bedworth. Engineering Economics. 4th ed. New Delhi: Tata McGraw-Hill, 2011.
Cita MLA (9th ed.)
Riggs, James L., i David D/Randhawa Bedworth. Engineering Economics. 4th ed. Tata McGraw-Hill, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.