| LDR | 00552namk 00145 k 4500 | |
|---|---|---|
| 001 | 000000019627 | |
| 005 | 19961016133403 | |
| 008 | 961016s us 000 eng | |
| 049 | ▼l WM00001421 ▼v v.2 | |
| 090 | ▼a 530.98207 ▼b U84n. ▼c v.2 | |
| 100 | 1 | ▼a U.S. Department of health & human services. |
| 245 | 10 | ▼a NIOSH Research report ( validation of a recommended aproch to recirculation of industrial exhaust air ). ▼n 2 / ▼d U.S. Department of health & human services |
| 260 | ▼a United States: ▼b NIOSH. | |
| 300 | ▼a 4-35p. | |
| 710 | ▼a U.S. Department of health & human services |