This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License
OR you can redistribute it and/or modify it according to the terms of the Free Art license.
You will find a specimen of this license on the site Copyleft Attitude
http://artlibre.org as well as on other sites.
Go here if you need an english language version.
Please use whichever license makes you feel all happy inside.