PSI: personalized system of instruction; 41 germinal papers,
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Menlo Park, Calif.,
W. A. Benjamin
[1974]
|
| Cyfres: | The Benjamin PSI series
|
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A3:AB21D5 D01615 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |