| LDR | 00506cmmk 00145 k 4500 | |
|---|---|---|
| 001 | 000000044686 | |
| 005 | 20080325133403 | |
| 008 | 080325s2006 us a eng | |
| 049 | ▼l CD00001358 ▼f CD | |
| 056 | ▼a 530.98024 | |
| 090 | ▼a 530.98024 ▼b D419t | |
| 110 | ▼a Department of Health and Human Services. | |
| 245 | 10 | ▼a Trench Safety Awareness Training(Trench Protective Systems: Use and Management) ▼h [컴퓨터파일] / ▼d Department of Health and Human Services |
| 260 | ▼a United States: ▼b NIOSH, ▼c 2006 | |
| 300 | ▼a CD 1매. |