Calvert county
| Image |  |
|---|---|
| Description | Baltimore,The Johns Hopkins Press,1907 |
| Author/s |
author: Jay Allan Bonsteel Louis Agricola Bauer Maryland Geological Survey |
| Publication date | 1907 |
| Language | English |
| Country of origin | United States |
| Wikipedia link | |
| Access work | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |