Well, sadly, your best bet is ebay.
Pictures will help boost your sales. Take pictures of the signature plate, the book in the box (to help push the notion the book is new), the front cover, and how nice and crisp the corners still are.
You should get at least cover price for it. That should be your starting bid. Put your buyout price at... hmmm... maybe $100 more. You will probably not get it, but there's the chance you might, and for ten cents more to put that up, it's no big loss.
I'd love to buy it, but... no cash. So, if you think you might be interested in trading, drop me a line.