The movie "Goodfellas" was based on the novel "Wise Guys" by what author?

• Mario Puzo
  Puzo was a pretty good guess, but "Wise Guys" and the screenplay for "Goodfellas" was written by Nicholas Pileggi.
• Henry Hill
  Puzo was a pretty good guess, but "Wise Guys" and the screenplay for "Goodfellas" was written by Nicholas Pileggi.
• Nicholas Pileggi
  Puzo was a pretty good guess, but "Wise Guys" and the screenplay for "Goodfellas" was written by Nicholas Pileggi.