CALVERT, R. (1996). Introduction To Building Management. Laxtons.
Lua i Stíl Chicago (17ú heag.)CALVERT, R.E. Introduction To Building Management. Laxtons, 1996.
Lua MLA (8ú heag.)CALVERT, R.E. Introduction To Building Management. Laxtons, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.