TY  - RPRT
TI  - Vulnerability of ground water to contamination, Edwards Aquifer recharge zone, Bexar County, Texas, 1998
AU  - Allan K. Clark
PY  - 2000
DO  - 10.3133/wri004149
UR  - https://pubs.usgs.gov/publication/wri004149
ID  - wri004149
ER  -