Guidebook to places of geologic interest in the Lehigh Valley, Pennsylvania /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Harrisburg, Pa. :
Dept. of Internal Affairs, Topographic and Geologic Survey,
1939.
|
| Series: | Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) ;
G16. |
| Subjects: |
| Item Description: | On cover: Commonwealth of Pennsylvania. Department of Internal Affairs. |
|---|---|
| Physical Description: | 47 pages : illustrations (including maps) diagram |
| Bibliography: | "Selected bibliography": pages 23-24. |