Martín Domínguez Berrueta.
Unknown author<span style="display: none;">Unknown author</span>
1910-07-03
<cite style="font-style:normal"> (<span class="mw-formatted-date" title="1910-07-03">1910-07-03</span>). "D. Martín D. Berrueta". <i><a href="https://www.wikidata.org/wiki/Q22713550" class="extiw" title="d:Q22713550">La Voz de Castilla</a></i> (90): 2.</cite>