Boardman, A. E. (2001). Cost-benefit analysis: Concepts and practice (2nd ed.). Upper Saddle River, NJ.: Prentice Hall.
Παραπομπή Chicago StyleBoardman, Anthony E. Cost-benefit Analysis: Concepts and Practice. 2nd ed. Upper Saddle River, NJ.: Prentice Hall, 2001.
Παραπομπή MLABoardman, Anthony E. Cost-benefit Analysis: Concepts and Practice. 2nd ed. Upper Saddle River, NJ.: Prentice Hall, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.