This image is a derivative work of the following images: File:Wikistress3D_4a_v3-4.JPG licensed with Cc-by-sa-3.0,2.5,2.0,1.0, GFDL 2008-09-17T23:46:10Z
DescriptionWikistress3D4av3-4.JPG English: Wikistress Date 28 August 2008 Source Own work Author Gabo 200 Other versions Derivative works of this file: