Busby, Jason Mastering Unreal technology : the art of level design / Jason Busby, Zak Parrish, Joel van Eenwyk - Indianapolis : Sams, c2005 - 962 p. ill. 24 cm. ISBN: 0672326922 Subjects--Topical Terms: Computer graphicsGame designComputer animation Dewey Class. No.: 006.693 BUS