PPuzzlemania + Math= MathmaniaPuzzlemania + Math= Mathmaniade Jeff O'hareEdiciones (2)Puzzlemania + Math= Mathmania (1999)Hightlights for ChildrenPuzzlemania + Math= Mathmania (1999)Hightlights for ChildrenMás obras de Jeff O'hareThe Book of Lairs IIDragonball Z Extreme (Dragonball Z)