<a href="https://en.wikipedia.org/wiki/pl:Gustaw_Billewicz" class="extiw" title="w:pl:Gustaw Billewicz">Gustaw Billewicz</a> "Sosna"
Unknown author<span style="display: none;">Unknown author</span>
<ul><li><cite class="book" style="font-style:normal">Lucjana Fajera (1957)      <i> Żołnierze Starówki</i>, <a href="https://en.wikipedia.org/wiki/en:Warsaw" class="extiw" title="w:en:Warsaw"><span title="capital and largest city of Poland">Warsaw</span></a>  <small></small></cite></li>
<li><cite class="book" style="font-style:normal">Andrzej Krzysztof Kunert (1987)      <i> Słownik biograficzny konspiracji warszawskiej 1939-1944, tom 2</i>, <a href="https://en.wikipedia.org/wiki/en:Warsaw" class="extiw" title="w:en:Warsaw"><span title="capital and largest city of Poland">Warsaw</span></a>  <small><a href="//commons.wikimedia.org/wiki/Special:BookSources/83-211-0739-7" title="Special:BookSources/83-211-0739-7">ISBN 83-211-0739-7</a>, <a href="//commons.wikimedia.org/wiki/Special:BookSources/83-211-0758-3" title="Special:BookSources/83-211-0758-3">ISBN 83-211-0758-3</a></small></cite></li></ul>