| 其他書名 | Twenty-third Annual Pacific Northwest Regional Economic Conference, April 26-28, 1989, Corvallis, Oregon |
| 出版 | Pacific Northwest Regional Economic Conference and The Northwest Policy Center, University of Washington, 1989 |
| URL | http://books.google.com.hk/books?id=Ig42XdlGb74C&hl=&source=gbs_api |