Litchfield, F. Pottery and porcelain: A guide to collectors (5th ed.).
Lua i Stíl Chicago (17ú heag.)Litchfield, Frederick. Pottery and Porcelain: A Guide to Collectors. 5th ed.
Lua MLA (8ú heag.)Litchfield, Frederick. Pottery and Porcelain: A Guide to Collectors. 5th ed.
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