Harbison, R. (1993). The Built The Unbuilt And The Unbuiltable In Pursuit Of Architectural Meaning With 140 Illustrations. Thames and Hudson.
Lua i Stíl Chicago (17ú heag.)Harbison, Robert. The Built The Unbuilt And The Unbuiltable In Pursuit Of Architectural Meaning With 140 Illustrations. Thames and Hudson, 1993.
Lua MLA (8ú heag.)Harbison, Robert. The Built The Unbuilt And The Unbuiltable In Pursuit Of Architectural Meaning With 140 Illustrations. Thames and Hudson, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.