GUILBE LÓPEZ, Carlos Jorge.
 Brief historical-geographical account of the primacy of San Juan within the urbsn system of Puerto Rico.
<strong>Bulletin of the Real Sociedad Geográfica</strong>, [S.l.], n. CLV, p. 89-106, nov. 2020.
ISSN 2603-6010.
Available at: &lt;<a href="https://www.boletinrsg.com/index.php/boletinrsg/article/view/103" target="_new">https://www.boletinrsg.com/index.php/boletinrsg/article/view/103</a>&gt;. Date accessed: 30 apr. 2025.