This video, screenshot or audio excerpt was originally uploaded on YouTube under a CC license.
Their website states: "YouTube allows users to mark their videos with a Creative Commons CC BY license."
To the uploader: You must provide a link (URL) to the original file and the authorship information if available.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
NOTE: Please do not use this template directly! This is just for translation. Use {{YouTube CC-BY}} instead.