Tohutoro APA (7th ed.)
Riggs, J. L., & Shukla, S. (2010). Engineering economics. Tata McGraw Hill.
Tohutoru Kātū Chicago (17th ed.)
Riggs, James L., me Saurabh Shukla. Engineering Economics. New Delhi: Tata McGraw Hill, 2010.
Tohutoro MLA (9th ed.)
Riggs, James L., me Saurabh Shukla. Engineering Economics. Tata McGraw Hill, 2010.
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