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Unknown author<span style="display: none;">Unknown author</span></div>
<cite class="book" style="font-style:normal" id="Reference-[[w:de:Friedrich_Justin_Bertuch|Friedrich_Justin_Bertuch]]-1808"><a href="https://en.wikipedia.org/wiki/de:Friedrich_Justin_Bertuch" class="extiw" title="w:de:Friedrich Justin Bertuch">Friedrich Justin Bertuch</a> (1808)      <i> <a rel="nofollow" class="external text" href="https://books.google.com/books?id=YN0BAAAAYAAJ">Allgemeine geographische Ephemeriden, Band 26</a></i>, <a href="https://en.wikipedia.org/wiki/en:Weimar" class="extiw" title="w:en:Weimar"><span title="city in the federal state of Thuringia, Germany">Weimar</span></a>:  Landes - Industrie - Comptoir Retrieved on 17 March 2012. <small></small></cite>