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.
Chicago Style (17th ed.) ZitazioaChurch, 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.
MLA (9th ed.) ZitazioaChurch, 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.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.