ROBERTSON, E. G. (1977). Cast Iron Decoration. Watson Guptill Publications.
Lua i Stíl Chicago (17ú heag.)ROBERTSON, E. Graeme. Cast Iron Decoration. Watson Guptill Publications, 1977.
Lua MLA (8ú heag.)ROBERTSON, E. Graeme. Cast Iron Decoration. Watson Guptill Publications, 1977.
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