00320nam a2200097Ia 4500008004100000245006600041245004500107260000900152650001000161856005100171171211s9999 xx 000 0 und d aGame Invaders: The Theory and Understanding of Computer Games cClive Fencott, Jo Clay, and Mike Lockyer c2012 xGAMES uhttp://down.ebook777.com/058/9780470597187.pdf