What I recommend though, is to subscribe to BIP.COM
online. You not only get Books in Print with the subscription
but also the Bowker directory, Words on Cassette and their
childrens' AV products. All of these are searched
simulataneously and can be limited by format, etc. I think its
the closest thing to an AV in Print so far.
Non-Print Materials Evaluator
County of Los Angeles Public Library