Graydon Carter

<strong>Quelle:</strong> <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/rubenstein_/">Rubenstein</a> - <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/rubenstein_/3502461189/in/set-72157617712162836/">Flickr</a>

<strong>Quelle:</strong> <a rel="nofollow" class="external text" href="http://www.markseliger.com/">Mark Seliger</a> - <a href="https://en.wikipedia.org/wiki/Wikipedia:Contact_us/Photo_submission" class="extiw" title="w:Wikipedia:Contact us/Photo submission">Wikipedia:Contact us/Photo submission</a>

<strong>Quelle:</strong> <bdi><a href="https://en.wikipedia.org/wiki/en:David_Shankbone" class="extiw" title="w:en:David Shankbone"><span title="photographer">David Shankbone</span></a> </bdi> - <span class="int-own-work" lang="en">Own work</span>

<strong>Quelle:</strong> <a rel="nofollow" class="external text" href="http://www.christopherpeterson.com">Christopher Peterson</a> - <span class="int-own-work" lang="en">Own work</span>