Survey of hygienic conditions in the printing trades /
| Hlavní autor: |
Kjaer, S.
(
Autor )
|
|---|---|
| Typ dokumentu: | Kniha |
| Jazyk: |
angličtina |
| Vydavatel: |
Washington :
Government printing office,
1925.
|
| Edice: |
Bulletin of the United States, bureau of labor statistic ;
no. 392 |
|
|