I don't believe CS6 has libraries, so you would have to find another means to share assets.
CS6 has a libraries function, just not a cloud based one like CC.
Thanks for your reply though.
You can share a public link to a library which will give them access to the contents through a browser. They can’t get direct access inside of Photoshop though.
Do you have instruction on how to do that?
There is a Share Link... option in the Library panel fly out menu.
That will take you to online where you can control permissions. I'm not 100% sure how the allow save option will work for a non CC subscriber. I know the will be able to see the contents online, and am thinking they can download content from there.
When you are viewing your library content online you can set individual permissions for each graphic too.
Here's a link to the help page for Sharing. Collaborate on folders and libraries from Creative Cloud account