About Creative Commons

Creative Commons provides free tools that let authors, scientists, artists, and educators easily mark their creative work with the freedoms they want it to carry. You can use CC to change your copyright terms from “All Rights Reserved” to “Some Rights Reserved.”

http://creativecommons.org/licenses/by-sa/2.5/ar/deed.en_GB

En castellano

http://creativecommons.org/licenses/by-sa/2.5/ar/deed.es

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