This is pretty much the exact same as the 1987 edition, only with a few updated tax rules!
The cover is in bad shape here, with some dirt spots throughout, and some fraying on the corners. Back looks like it has large sperm crawling all over it (it's clearly not sperm, just white spots oddly shaped like it). Most of this can probably be fixed with a little attention and elbow grease.
Inside is pretty yellowed, but otherwise free of marks and creases, making it a splendid copy outside of the average cover.