TY  - RPRT
TI  - An application of surface geophysical techniques to the study of watershed hydrology
AU  - Ronald R. Shields
AU  - William E. Sopper
PY  - 2007
DO  - 10.1111/j.1752-1688.1969.tb04900.x
UR  - https://pubs.usgs.gov/publication/70224623
ID  - 70224623
ER  -