Geologic Map Of The Potomac River Gorge: Great Falls Park, Etc., U.S. Geological Survey Open-File Report 00-264, 2000, (CD-ROM).
| Other author | Geological Survey (U.S.) |
| Format | Book |
| Publication Info | [Place of publication not identified] : [publisher not identified], [2001?] |
| General note | Shipping List #: 2001-0012-E |
| General note | Shipping List Date: 01/04/2001 |
| GPO item number | 0624-H |
| Govt. docs number | I 19.76:00-264 |