| 其他書名 | A Summary of Recent Significant Scientific and Economic Results Accompanied by a List of Geologic, Hydrologic, and Cartographic Investigations in Progress |
| 出版 | U.S. Government Printing Office, 1980 |
| URL | http://books.google.com.hk/books?id=6ry2CRfJfr4C&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |