It very well could have been printed in different
colors. A red one...hmmm. Possible collectible? Mine
I;'ve found it. It's a red paperback. The front cover reads :
Operating Systems
Design and Implementation
Prentice-Hall Interational Editions
Andrew S Tanenbaum
Inside is the curious comment
'This edition may be sold only in those countries to which it is
consigned by Prentice Hall International. It is not to be re-exported and
it is not for sale in the USA, Mexico or Canada'
No idea why not.
-tony