| ID | 232978 |
| Call Number | ILC/15.II/069520 |
| Title Proper | Hours of work in coal mines (item 2 on the agenda), with supplement |
| Language | ENG |
| Author | International Labour Conference 15th Session, Geneva, 1931 |
| Publication | Geneva, International Labour Organisation, 1931. |
| Description | -- 20.5 cm |
| Series | Report 2 |
| Price. Qualification | SIS Gift |
| Classification Number | ILC |