TThe million dollar machineThe million dollar machinede Kent DavisMateriasLife skillsStudy and teachingSocial skillsDrug abuse and crimePreventionEdiciones (1)The million dollar machine (2008)DatAsia · inglés · ISBN 9781934431573Más obras de Kent DavisA riddle in RubyRiddle in Ruby #3: The Great Unravel, AA Riddle in Ruby #2: The Changer's Key