http://www.bol.com/ (They say it is a hard-cover, but i have no confirmation of that being accurate, so don't blame me if it is a soft-cover.)
You could print and distribute it too if you like.
Go to free PDF downloads: here
This books as it is sold does not have the latest (few) changes, see:
../gratis/Notice.html about these
changes. Hopefully a later version (#2) of this book will contain them.