Hey 142.177.X.X where was this list copied from? You really should do source attribution according to GFDL and it also helps very much in keeping different versions in sync.
- If it's GFDL it needs *AUTHOR* attribution, not *SOURCE* attribution. Wikipedia has broken the rules so badly that this is totally impossible to provide, it's XML export doesn't include the list of contributors, only the most recent one! So this is impossible in principle.
- You should have asked earlier, we forgot where it's from now, but it's not hard to find texts with google if you just use some distinctive phrases from it.