TY  - RPRT
TI  - S-wave refraction survey of alluvial aggregate
AU  - Karl J. Ellefsen
AU  - Gary J. Tuttle
AU  - Jackie M. Williams
AU  - Jeffrey E. Lucius
PY  - 2005
DO  - 10.3133/sir20055012
UR  - https://pubs.usgs.gov/publication/sir20055012
ID  - sir20055012
ER  -