How much would a 1988 autographed book filled with hockey star autographs be worth?

I am currenly in possesion of a copy of Ken Dryden's "The Game". Inside of it, on the first page and on the inside cover, there are autographs of Wayne Gretzky, Mario Lemieux, Kevin Lowe, Mark Messier, Scotty Bowman, Larry Robinson, Dennis Potvin, Peter Stasney and Gordie Howe. On the inside cover there is a ticket to the 1988 All-Stars Practice Game. If anyone can identify the value of this book I would be indebted. Thank you very much!