Pearce, D. W., & Pearce, D. W. (1983). Cost-benefit analysis (2nd ed.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Pearce, D W., agus D. W. Pearce. Cost-benefit Analysis. 2nd ed. New York: Macmillan, 1983.
Lua MLA (9ú heag.)Pearce, D W., agus D. W. Pearce. Cost-benefit Analysis. 2nd ed. Macmillan, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.