Ballast, D. K. (1984). The architect's handbook. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Ballast, David Kent. The Architect's Handbook. Englewood Cliffs, N.J: Prentice-Hall, 1984.
Lua MLA (9ú heag.)Ballast, David Kent. The Architect's Handbook. Prentice-Hall, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.