TY  - BOOK
TI  - Topographic Map - St. Marys City, Maryland Quadrangle (1987)
PY  - 1987///
CY  - Washington, D. C.
PB  - United States Department of the Interior, Geological Survey
UR  - https://tudorhall.stmaryshistory.org/maps/map-208.pdf
ER  -