(原始内容存档于2022-01-16) –通过Google Books. MARVEL IN THE 1970'S: DR STRANGE AND CAPTAINAMERICA. Twitch Film. [2011-10-06]. (原始内容存档于2011-10-06). O'Connor, John J. TV Weekend;
"Austin-born Oscar winner directs 'CaptainAmerica'" (页面存档备份,存于互联网档案馆), Austin.YNN.com, July 22, 2011. Buchanan, Jason. "Film > Film Biography > Joe Johnston"