Luis Valera.
Not stated. Unknown author<span style="display: none;">Unknown author</span>
1910-05-26
<cite style="font-style:normal"> (<span class="mw-formatted-date" title="1910-05-26">1910-05-26</span>). "Del marqués de Villasinda". <i><a href="https://www.wikidata.org/wiki/Q15966757" class="extiw" title="d:Q15966757">Nuevo Mundo</a></i> (855). <a href="https://en.wikipedia.org/wiki/International_Standard_Serial_Number" class="extiw" title="en:International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="https://www.worldcat.org/issn/1699-8677">1699-8677</a>.</cite>