I have just sent Thomson a certified letter requesting clarification
of the status of this title. It's extremely doubtful, but possible,
they may issue C&D to the servers offering it. If you want it,
on .pdf, DOWNLOAD IT NOW.

If they do, they won't bother anyone who has it if they don't
publicly distribute it. Copyright is challengeable if it exists at
all because it's been out for years and they did nothing.