| ID | 256638 |
| Call Number | X:951-87395.3/H4/044489 |
| Title Proper | Study of variations in output |
| Language | ENG |
| Author | Medical Research Council Industrial Health Research Board |
| Publication | London, Official, 1944. |
| Description | 16p |
| Series | Medical research council..... No 5 |
| Price. Qualification | Pound 0.04(--) |
| Classification Number | X:951-87395.3 |