TY  - RPRT
TI  - An Introduction to Using Surface Geophysics to Characterize Sand and Gravel Deposits
AU  - Jeffrey E. Lucius
AU  - William H. Langer
AU  - Karl J. Ellefsen
PY  - 2006
DO  - 10.3133/ofr20061257
UR  - https://pubs.usgs.gov/publication/ofr20061257
ID  - ofr20061257
ER  -