RHDAS availability.

[Dave Wilton]

Volume I can be found in many, many used book stores. Vol II is more
difficult to find.

Both are available via http://www.bookfinder.com, which consolidates
listings from various used book stores (bookmark the site if you haven't
already--it's invaluable). Volume II is usually found as part of a set, but
there are a few solitary second volumes available.

--Dave Wilton
  dave at wilton.net
  http://www.wilton.net