Cita APA (7th ed.)
Riggs, J. L., & Shukla, S. (2010). Engineering economics. Tata McGraw Hill.
Cita Chicago (17th ed.)
Riggs, James L., i Saurabh Shukla. Engineering Economics. New Delhi: Tata McGraw Hill, 2010.
Cita MLA (9th ed.)
Riggs, James L., i Saurabh Shukla. Engineering Economics. Tata McGraw Hill, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.