Puttaswamaiah, K. (1989). Project evaluation criteria and cost-benefit analysis (2nd ed.). Oxford & IBH.
Chicago Style aipamenaPuttaswamaiah, K. Project Evaluation Criteria and Cost-benefit Analysis. 2nd ed. New Delhi: Oxford & IBH, 1989.
MLA aipamenaPuttaswamaiah, K. Project Evaluation Criteria and Cost-benefit Analysis. 2nd ed. Oxford & IBH, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.