Ambisonic Toolkit help documentation for SuperCollider is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License.
Executable Ambisonic Toolkit code for SuperCollider remains under the GPL as stated in the Ambisonic Toolkit's and SuperCollider's main license conditions.
To supply attribution for a help document (which may have multiple contributors), unless otherwise indicated you may credit "Ambisonic Toolkit for SuperCollider 3 documentation contributors".