I don't know how to do what you're asking, but here are a few related thoughts...
-Wikipedia content (as well as other web-based stuff) changes over time...how to have your notes make sense in such a setup...
-There's a "Download as PDF" under the "Print/export" section of the left sidebar on many (all?) Wikipedia articles. I've had mixed results with that, but may be that might be of use in some cases?
May be you thought of all of this already, but FWIW
