LEE, S. (2011). Willis’s elements of quantity surveying. Wiley-Blackwell.
Lua i Stíl Chicago (17ú heag.)LEE, Sandra. Willis’s Elements of Quantity Surveying. Wiley-Blackwell, 2011.
Lua MLA (9ú heag.)LEE, Sandra. Willis’s Elements of Quantity Surveying. Wiley-Blackwell, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.