| LDR | 00483namk 00145 k 4500 | |
|---|---|---|
| 001 | 000000028627 | |
| 005 | 19811215133403 | |
| 008 | 811215s1978 us 000a eng | |
| 049 | ▼l WM00004570 | |
| 056 | ▼a 530.983 | |
| 090 | ▼a 530.983 ▼c N277r | |
| 110 | ▼a National Institude for Occupational Safety and Health. | |
| 245 | 10 | ▼a Respiratory Protection : An employer`s Manual / ▼d National Institude for Occupational Safety and Health |
| 260 | ▼a United States: ▼b NIOSH, ▼c 1978 | |
| 300 | ▼a 92p , ▼c 22cm |