In case you can't find an old copy of the magazine...

Many Libraries and Archive database services may have it available on http://en.wikipedia.org/wiki/Microfiche

Which you can request copies and reprints from...

And check with...

http://www.reprintbuyer.com/mags/com.../reprints.html
http://computershopper.com/contact/

If it's the same magazine and publisher...
You just never know what they might have or know someone who has what you're looking for.

Phil