<a href="https://en.wikipedia.org/wiki/Stephen_Stetler" class="extiw" title="w:Stephen Stetler">Stephen Stetler</a> at Pennsylvania Conservation Voters Education League releaseof their 2006 Pennsylvania Environmental Briefing Book.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/33701862@N00">Michael Fedor</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/33701862@N00/173234779/">bb-release-2-14-2006</a>