SOCIEDAD GEOGRÁFICA, Real.
 Juan Velarde Fuertes.
<strong>Bulletin of the Real Sociedad Geográfica</strong>, [S.l.], n. CLX, p. 9-12, june 2023.
ISSN 2603-6010.
Available at: &lt;<a href="https://www.boletinrsg.com/index.php/boletinrsg/article/view/173" target="_new">https://www.boletinrsg.com/index.php/boletinrsg/article/view/173</a>&gt;. Date accessed: 30 apr. 2025.