Tohutoro APA (7th ed.)
Patra, K. K., & Bhattacharjee, D. (2013). Engineering economics and costing. S. Chand & Company.
Tohutoru Kātū Chicago (17th ed.)
Patra, K. K., me Dhiraj Bhattacharjee. Engineering Economics and Costing. New Delhi: S. Chand & Company, 2013.
Tohutoro MLA (9th ed.)
Patra, K. K., me Dhiraj Bhattacharjee. Engineering Economics and Costing. S. Chand & Company, 2013.
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