Encyclopedia of occupational health and safety Dr. Luigi Parmeggiani
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Geneva
International Labor Office
c1989.
|
| Rhifyn: | 3rd rev. ed. with modifications. |
| Pynciau: |