The sole copy offered by any of thousands of dealers with Abebooks, Alibris and Bookfinder is one in Edinburgh for about $278.25 (the one Malcolm speaks of, I think).
When I got mine some time ago, I tried the sources mentioned by Joe (who posted this way back in 1998, thread 6604) and by Malcolm without luck. I found a dealer in Athens, GA (where it was published by the University of Georgia Press) who had copies for US$75, but he is out.
The University also published some softcover copies, according to one dealer, probably of left-over sheets from the hardcover edition, but the book is not in their catalogue.

Good Luck!