Gary,

Clayton Thompson said he can't get it new and hasn't been able to for some months (or years.) He still had the listing, but when he called to check on it he was told it was not available. I don't think it is technically "out of print" but they don't seem to be printing new ones either, nor planning to do so in the future. It has entered that "Never, Never Land" of the publishing business where it is not out of print (so that rights revert to the author), but it is not available from the publisher either.

I've not seen it in bookstores in the past several years and I've been to a fair mix of state and national battlefields.