"La Pinetina" Training Centre, Appiano Gentile (Como), 1973. From left to right: Italian footballer Alessandro "Sandro" Mazzola and French-Argentine football manager Helenio Herrera in training with Inter Milan in the 1973–74 season.
Unknown author<span style="display: none;">Unknown author</span>
Carlotta Vanni (<span class="mw-formatted-date" title="2017-11-09">November 9, 2017</span>). <a rel="nofollow" class="external text" href="https://www.teleambiente.it/helenio-herrera-20-anni-dalla-scomparsa/">Helenio Herrera. 20 anni dalla scomparsa del "Mago"</a> <span style="font-size: 0.95em; font-weight: bold; color:#555; position: relative;">(in italian)</span>. <i>teleambiente.it</i>.