Church, A. H. (1891). Precious stones considered in their scientific and artistic relations: With a catalogue of the Townshend Collection of gems in the South Kensington Museum (2a. ed.). Chapman and Hall.
Citace podle Chicago (17th ed.)Church, A. H. Precious Stones Considered in Their Scientific and Artistic Relations: With a Catalogue of the Townshend Collection of Gems in the South Kensington Museum. 2a. ed. Londres: Chapman and Hall, 1891.
Citace podle MLA (9th ed.)Church, A. H. Precious Stones Considered in Their Scientific and Artistic Relations: With a Catalogue of the Townshend Collection of Gems in the South Kensington Museum. 2a. ed. Chapman and Hall, 1891.
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