I have one copy in book form: Claudio, you can buy it for $US1000 dollars or $Euro1000 whichever is worth most…no, wait, I missed another zero 
It’s pretty hard to find in the original paper format. Best to get the ebook from CF himself, or else try through some kind of “Book-Search” mechanism which some book shops subscribe to, but even if you find one you can expect it to be in bad condition - like the one I found a few years ago.