✦ LIBER ✦
Maintenance of discipline through increasing chldren's span of attending by means of a token economy
✍ Scribed by Rudolph F. Wagner; Barbara P. Guyer
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 360 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0033-3085
No coin nor oath required. For personal study only.