Ray Crist in an interview with Burtron Davis
Image courtesy of Burtron Davis and <a rel="nofollow" class="external text" href="http://video-history-catalysis.org/">North American Catalysis Society</a>
CC BY 4.0
<a rel="nofollow" class="external free" href="https://www.youtube.com/watch?v=K8D_BCw8jk4">https://www.youtube.com/watch?v=K8D_BCw8jk4</a>