Bragdon, C. F. (1922). The beautiful necessity: Seven essays on theosophy and architecture (2d ed.). A.A. Knopf.
Lua i Stíl Chicago (17ú heag.)Bragdon, Claude Fayette. The Beautiful Necessity: Seven Essays on Theosophy and Architecture. 2d ed. New York: A.A. Knopf, 1922.
Lua MLA (8ú heag.)Bragdon, Claude Fayette. The Beautiful Necessity: Seven Essays on Theosophy and Architecture. 2d ed. A.A. Knopf, 1922.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.