Programmed learning aid for retailing modern concepts and practices
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Homewood, Illinois
Learning Systems Company
©1974.
|
| Saila: | Irwin programmed learning aid series
|
| Gaiak: |