final (spring '89) issue of Muppet Magazine

[casira]

I was under the delusion that I had a full Muppet Magazine collection, until I looked at http://www.muppetcentral.com/collectibles/muppets/magazines.shtml and realized that -- ack! -- there's one more! ;) I was a subscriber for years, but apparently I ended it one issue short. Any ideas on how I can find the final issue? (I've picked up a few of my missing issues on eBay, but haven't come across this one yet.)

Thanks!