I can't help you persay, since I want to keep all my books...but I have had a lot of luck finding them used for a reasonable price online and I also have found a surprising number of books at local used bookstores. You just kind fo have to look around.
I've had a lot of luck on Ebay...
http://search.ebay.com/search/search.dll?from=R40&_trksid=m37&satitle=Schutzhund&category0=
This isn't used, and I've just ordered it myself, but from what I hear it's a very nice comprehensive book. There's a copy on Amazon for $250, why I do not know, since it's on this website for $35.
http://tomrose.com/zc/index.php?main_page=product_info&products_id=1
I've had a lot of luck on Ebay...
http://search.ebay.com/search/search.dll?from=R40&_trksid=m37&satitle=Schutzhund&category0=
This isn't used, and I've just ordered it myself, but from what I hear it's a very nice comprehensive book. There's a copy on Amazon for $250, why I do not know, since it's on this website for $35.
http://tomrose.com/zc/index.php?main_page=product_info&products_id=1