✦ LIBER ✦
A non-automated, but practical rapid delivery point card system for token economies
✍ Scribed by Clarke S. Harris
- Book ID
- 113990815
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 228 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0005-7894
No coin nor oath required. For personal study only.