Programmed learning aid for person perception
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | Saesneg |
| Cyhoeddwyd: |
Homewood, Ill.
Learning Systems
c1975.
|
| Cyfres: | Irwin programmed learning aid series
[no.9] |
| Pynciau: |