Help??

I am looking for a book I need. I have looked on ebay and other sites like amazon, a1books, dualj, and half.com, but I'm not finding what I need at a price that I like. I did find what I wanted on ebay and I did bin, but when I got it, it was the wrong book. (I don't know all of the ebay rules, but I think it is wrong to list the ISBN number of a different book, and then farther down in the listing say it isn't that book.) Anyways, this is the book I'm looking for. I did find one auction on ebay that's at $40, and another copy on half.com that's $59.99. The biggest problem I'm finding is that a lot of the books are international copies, or instructor's editions. Does anyone else have any suggestions?