Levy, S. M. (1999). Construction databook (First edition.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Levy, Sidney M. Construction Databook. First edition. New York: McGraw-Hill, 1999.
Lua MLA (9ú heag.)Levy, Sidney M. Construction Databook. First edition. McGraw-Hill, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.