| 其他書名 | How Clean is Clean? : Proceedings |
| 出版 | Water Environment Federation, 1992 |
| 主題 | Technology & Engineering / Civil / GeneralTechnology & Engineering / Environmental / Water Supply |
| ISBN | 18813692269781881369226 |
| URL | http://books.google.com.hk/books?id=_qFDAQAAIAAJ&hl=&source=gbs_api |