TY  - RPRT
TI  - Distribution of nitrate in the unsaturated zone, Highland-East Highlands area, San Bernardino County, California
AU  - John M. Klein
AU  - Wesley L. Bradford
PY  - 1980
DO  - 10.3133/wri8048
UR  - https://pubs.usgs.gov/publication/wri8048
ID  - wri8048
ER  -