Pennsylvania Child Labor Association.
| Autor: | Hall, Fred S. |
|---|---|
| Zdroj: | Annals of the American Academy of Political & Social Science; 1910 Supplement, Vol. 35 Issue 2S, p184-186, 3p |
| Databáze: | Complementary Index |
| Externí odkaz: |
|
| Autor: | Hall, Fred S. |
|---|---|
| Zdroj: | Annals of the American Academy of Political & Social Science; 1910 Supplement, Vol. 35 Issue 2S, p184-186, 3p |
| Databáze: | Complementary Index |
| Externí odkaz: |
|