The following sources were consulted in the preparation of the article “Why pinball was once considered a crime in New York City.”
- Gambling Today via the “Free Replay” Pinball Machine
- The Rise and Decline of Coin-Machine Gambling
- Pinball Machines Which Award Free Games as Gambling Devices
- Gaming – Game of Chance – Free Games Awarded for High Score on Pinball Machine Held Property within Anti-Gambling Statutes
- Toward a Study of Pinball
- Video Game Regulation and the Courts