Riggs,James L, & Bedworth,D David. (1996). Engineering economics (4.). Tata McGraw Hill.
Chicago Edition CitationRiggs,James L, and Bedworth,D David. Engineering Economics. 4. New Delhi: Tata McGraw Hill, 1996.
Deismireacht MLARiggs,James L, and Bedworth,D David. Engineering Economics. 4. Tata McGraw Hill, 1996.
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