TY  - BOOK
AU  - Ellefsen, Karl.
AU  - Lucius, Jeffrey E.
AU  - Fitterman, David V.
CN  - I 19.76:
CY  - [Denver, CO] :
DA  - 1998.
ID  - 216824
KW  - Geophysical profiling
KW  - Aggregates (Building materials)
N1  - Cover title.
N1  - "U.S. Department of the Interior, U.S. Geological Survey"
N1  - Imprint from transmittal sheet.
PB  - U.S. Geological Survey,
PP  - [Denver, CO] :
PY  - 1998.
T1  - An evaluation of several geophysical methods for characterizing sand and gravel deposits /
TI  - An evaluation of several geophysical methods for characterizing sand and gravel deposits /
VL  - 98-221
ER  -