| ID | 232972 |
| Call Number | ILC.15.IIQ/INT/069518 |
| Title Proper | Fifteenth session : Hours of work in coal mines May 1931 |
| Language | ENG |
| Author | Inter-National Labour Office, Geneva |
| Publication | Geneva, Inter-National Labour Office, Geneva, 1930. |
| Description | 91p 20 cm |
| Price. Qualification | SIS Gift |
| Classification Number | ILC.15.IIQ |