Hickling, A. (2015). Toy Forts & Castles: European-Made Toys of the 19th & 20th Centuries. Schiffer.
Lua i Stíl Chicago (17ú heag.)Hickling, Allen. Toy Forts & Castles: European-Made Toys of the 19th & 20th Centuries. Atglen: Schiffer, 2015.
Lua MLA (8ú heag.)Hickling, Allen. Toy Forts & Castles: European-Made Toys of the 19th & 20th Centuries. Schiffer, 2015.
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