TY  - RPRT
TI  - Bog iron formation in the Nassawango Watershed, Maryland
AU  - Owen P. Bricker
AU  - Wayne L. Newell
AU  - Nancy S. Simon
PY  - 2003
DO  - 10.3133/ofr03346
UR  - https://pubs.usgs.gov/publication/ofr03346
ID  - ofr03346
ER  -