Oral trade questions, prepared by the United States Employment Service Division, Occupational Analysis Section.
| Údar corparáideach: | |
|---|---|
| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
Washington
Govt. Print. Off.
1940-.
|
| Ábhair: |