Conference of "World Union of documentary films" in Warsaw: Basil Wright (left), Elmar Klos, Joris Ivens and Jerzy Toeplitz
Unknown author<span style="display: none;">Unknown author</span>
1948-12-23
<a href="https://pl.wikipedia.org/wiki/Film_(miesi%C4%99cznik)" class="extiw" title="pl:Film (miesięcznik)">Film</a> Nr. 53/54; 23 December 1948