<i>Bulletin Hispanique</i>, tomo I, 1899.
Unknown author<span style="display: none;">Unknown author</span>
<cite style="font-style:normal"> (1899). "<a rel="nofollow" class="external text" href="https://archive.org/stream/bulletinhispaniq01borduoft#page/n7/mode/2up">Portada</a>". <i><a href="https://www.wikidata.org/wiki/Q23739791" class="extiw" title="d:Q23739791">Bulletin Hispanique</a></i> <b>I</b>.</cite>