PEURIFOY, R. (1989). Estimating Construction Costs R.l.peurifoy And G.d.oberlender. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)PEURIFOY, R.L. Estimating Construction Costs R.l.peurifoy And G.d.oberlender. McGraw-Hill, 1989.
Lua MLA (8ú heag.)PEURIFOY, R.L. Estimating Construction Costs R.l.peurifoy And G.d.oberlender. McGraw-Hill, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.