Punished by Rewards: The Trouble with Gold Stars, Incentive Plans, A's, Praise, and Other Bribes by Alfie Kohn (Sep 30 1999)
- Only 2 left in stock - order soon.
- More buying choices - Paperback
- CDN$ 3.36 new (24 offers)
- CDN$ 0.52 used (28 offers)
- Eligible for FREE Super Saver Shipping.