Programmed learning aid for business communications
| Hlavní autor: | |
|---|---|
| Další autoři: | |
| Médium: | Kniha |
| Jazyk: | English |
| Vydáno: |
Homewood, Ill.
Learning Systems Co.
c1976.
|
| Edice: | Irwin programmed learning aid series
|
| Témata: |