Durang, E. F. (1920). Architectural Album of Edwin F. Durang & Son. Philadelphia.
Lua i Stíl Chicago (17ú heag.)Durang, Edwin Forrest. Architectural Album of Edwin F. Durang & Son. Philadelphia, 1920.
Lua MLA (8ú heag.)Durang, Edwin Forrest. Architectural Album of Edwin F. Durang & Son. Philadelphia, 1920.
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