Riggs, J. L., & Bedworth, D. D. (2011). Engineering economics (4th ed.). Tata McGraw-Hill.
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Chicago-čujuhus (17. p.)
Riggs, James L., juo David D/Randhawa Bedworth. Engineering Economics. 4th ed. New Delhi: Tata McGraw-Hill, 2011.
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MLA-čujuhus (9. p.)
Riggs, James L., juo David D/Randhawa Bedworth. Engineering Economics. 4th ed. Tata McGraw-Hill, 2011.
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