A roster of C.S. Cagliari in the 1930–31 season.
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external text" href="https://www.cagliaricalcio.com/news/ultimissime/17506/buon-compleanno-casteddu">Buon compleanno, Casteddu!</a> <span style="font-size: 0.95em; font-weight: bold; color:#555; position: relative;">(in italian)</span>. <i>cagliaricalcio.com</i> (<span class="mw-formatted-date" title="2018-05-30">May 30, 2018</span>).