ORTEGA CANTERO, Nicolás.
 Marañón and Las Hurdes: the scientific Commission and the trip of Alfonso XIII.
<strong>Bulletin of the Real Sociedad Geográfica</strong>, [S.l.], n. CLIX, p. 163-210, dec. 2022.
ISSN 2603-6010.
Available at: &lt;<a href="https://www.boletinrsg.com/index.php/boletinrsg/article/view/168" target="_new">https://www.boletinrsg.com/index.php/boletinrsg/article/view/168</a>&gt;. Date accessed: 30 apr. 2025.