| LDR | 00405namk 00133 k 4500 | |
|---|---|---|
| 001 | 000000019520 | |
| 005 | 19811215133403 | |
| 008 | 811215s1979 us 000a eng | |
| 049 | ▼l WM00002950 ▼v v.2 | |
| 090 | ▼a 530.98208 ▼b N277v ▼c v.2 | |
| 245 | 10 | ▼a Validation of a recommended approach to recirculation of industrial exhaust air. ▼n 2 / ▼d NIOSH |
| 260 | ▼a United States: ▼b NIOSH, ▼c 1979 | |
| 300 | ▼a 4-35p. | |
| 710 | ▼a NIOSH |