| 其他書名 | A Development and Demonstration Project Conducted Under Contract for Task 7, Canada/United States Agreement on Great Lakes Water Quality |
| 出版 | Fisheries and Environment Canada, Environmental Protection Service, Water Pollution Control Directorate, 1977 |
| ISBN | 06620136979780662013693 |
| URL | http://books.google.com.hk/books?id=2xwYAAAACAAJ&hl=&source=gbs_api |