TY  - BOOK
TI  - Topographic Map - St. Marys City, Maryland Quadrangle (1943, revised 1982)
PY  - 1943///, revised 1982
CY  - Washington, D. C.
PB  - United States Department of the Interior, Geological Survey
UR  - https://tudorhall.stmaryshistory.org/maps/map-207.pdf
ER  -