Opinio Verlag Basel
| Address: | Opinio Verlag Basel. Missionsstrasse 36, 4055 Basel |
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| Country: | Switzerland |
| Website: | http://www.reinhardt.ch/default.aspx?code=0107&assortment=07 |
| Books by this publisher: | Photoatlas of Inclusions in Gemstones vol. 1, Photoatlas of Inclusions in Gemstones vol. 2, and Photoatlas of Inclusions in Gemstones vol. 3 |