Euskararen barietateen banaketa <i>Morfología Auxiliar del verbo vasco</i> ( <a rel="nofollow" class="external text" href="https://www.euskaltzaindia.eus/hizkuntza-baliabideak/dialektologia/morfologia-del-verbo-auxiliar-vasco-467"><i>Irizar, Pedro (1910-2004)</i> </a>) lanaren arabera
<a href="//commons.wikimedia.org/wiki/User:Enekorga" class="mw-redirect" title="User:Enekorga">Enekorga</a>
<span class="int-own-work" lang="en">Own work</span>