David Ahl's "101 Basic Computer Games"
published by DEC
in 1973 (this one is from the 1974 2nd printing).
Does it have a DEC Order Number on it? Is it EB-04873-76?
Ahl's DECUS submissions of these games are online at
http://pdp-11.trailing-edge.com/rsts11/rsts-11-013/index.html
http://pdp-11.trailing-edge.com/rsts11/rsts-11-014/index.html
Tim.