| LDR | 00422camk 00145 k 4500 | |
|---|---|---|
| 001 | 000000019487 | |
| 005 | 19991001133403 | |
| 008 | 991001s1987 hk 000a eng | |
| 049 | ▼l WM00002832 ▼l WM00002879 ▼c c.2 | |
| 090 | ▼a 530.982 ▼b L125s | |
| 245 | 10 | ▼a Silica / ▼d Labour Department |
| 260 | ▼a 홍콩: ▼b Labour Department, ▼c 1987 | |
| 300 | ▼a 7p, ▼c 21cm | |
| 440 | 00 | ▼a The protection of workers' health series. |
| 710 | ▼a Labour Department |