| 其他書名 | The U.S. Environmental Protection Agency Region 9 and the State of California : a Practicum Submitted in Partial Fulfillment ... for the Degree of Master of Science, Natural Resources ... |
| 出版 | University of Michigan, 1991 |
| URL | http://books.google.com.hk/books?id=m4iVZEeHfD8C&hl=&source=gbs_api |