If it is that set, if it has yellow or green backs (whatever those look like as I have never seen the set's different version) the whole set is worth $40. This information is per the Bekcett Plus Price Guide and the Barry Bonds card is widely considered by collectors to be equivalent to a rookie card, thus making it sought after.
That is the only Classic set booking in Beckett from 1986 or 1987, I think that is your set. If your Mike Schmidt card is #101 and there is a Bo Jackson #109 (book value $5) along with #113 Barry Bonds and #121 Mark McGwire, you have that great set. It is a nice set to have, I don't have one but it would go great in my collection and is too bad that I don't have it. (That is not an offer to buy or trade for it though)