Concept
Version 11
Created by Boundless
Termination
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"NARA Backstage Pass (2011-08) - 14."
http://en.wikipedia.org/wiki/File:NARA_Backstage_Pass_(2011-08)_-_14.jpg
Wikipedia
GNU FDL.