Relazione di Alessandro Castellani dall'Esposizione parigine
<a href="//commons.wikimedia.org/w/index.php?title=Template:Alessandro_Castellani&amp;action=edit&amp;redlink=1" class="new" title="Template:Alessandro Castellani (page does not exist)">Template:Alessandro Castellani</a>
1879
<a rel="nofollow" class="external free" href="https://archive.org/details/deglioriedeigio00castgoog">https://archive.org/details/deglioriedeigio00castgoog</a>