Isaacs, R. R. (1983). Walter Gropius. Mann.
Lua i Stíl Chicago (17ú heag.)Isaacs, Reginald R. Walter Gropius. Berlin: Mann, 1983.
Lua MLA (8ú heag.)Isaacs, Reginald R. Walter Gropius. Mann, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.