| 其他書名 | A Cooperative Study by Illinois State Water Survey Division, Geological Survey, United States Dept. of the Interior, Soil Conservation Service, U. S. Dept. of Agriculture |
| 出版 | Illinois State Water Survey, 1952 |
| URL | http://books.google.com.hk/books?id=oukQhIYXXBsC&hl=&source=gbs_api |