So far as I know, UC Press has *not* discontinued publication of this
title. Have you tried ordering through the following URL, which lists it as
currently available?

http://www.ucpress.edu/books/pages/1165.html

I know the title was part of their Millenium Sale, which ended in January
2000. If they are temporarily out of stock, my arrangement with them is
that they will reprint it in a reasonably timely way. Please let me know if
you're getting some other message either from UCPress itself or the
California-Princeton Fulfillment Services. Thanks.

Bob Hirst