BUTLER, R. B. (2002). Architectural engineering design (ada CD). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BUTLER, Robert Brown. Architectural Engineering Design (ada CD). McGraw-Hill, 2002.
Lua MLA (8ú heag.)BUTLER, Robert Brown. Architectural Engineering Design (ada CD). McGraw-Hill, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.