Boardman, A. E. (2006). Cost-benefit analysis: Concepts and practice (3rd ed.). Pearson/Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Boardman, Anthony E. Cost-benefit Analysis: Concepts and Practice. 3rd ed. Upper Saddle River, N.J. ; New Delhi: Pearson/Prentice Hall, 2006.
Lua MLA (8ú heag.)Boardman, Anthony E. Cost-benefit Analysis: Concepts and Practice. 3rd ed. Pearson/Prentice Hall, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.