TY  - RPRT
TI  - Norrisville quadrangle, Baltimore and Harford Counties, Maryland: Hydrogeology
AU  - E. G. Otton
PY  - 1981
DO  - 10.3133/ofr81127
UR  - https://pubs.usgs.gov/publication/ofr81127
ID  - ofr81127
ER  -