En
Ru
| Description |
Protection of the life and health of workers in industry.Part 1.Ext.3. - St. Petersburg.: Type of.P.P. Soykina, 1915. -Content: Sk.2..Electronic copy source: GPNTB of Russia
|
|---|---|
| Publisher | СПб. : Тип. П. П. Сойкина |
| Description |
Protection of the life and health of workers in industry.Part 1.Ext.3. - St. Petersburg.: Type of.P.P. Soykina, 1915. -Content: Sk.2..Electronic copy source: GPNTB of Russia
|
|---|---|
| Publisher | СПб. : Тип. П. П. Сойкина |