Lions commentary

[Al Donaldson]

Today I borrowed an N'th generation copy of Lions' Commentary
on the UNIX Operating System and went by my friendly neighborhood
printshop to get a N+1'st generation copy made.  They said they 
couldn't do it because of the copyright notice at the bottom of 
the first page (Copyright 1977 J. Lions).

Even though the referenced source code is a bit out of date, 
the commentary seems to me to be timeless.  Is there a legal 
(and more readable..) version of this available for sale anywhere?

Al Donaldson (al at escom.com)