Field demonstrations of five geophysical methods that could be used to characterize deposits of alluvial aggregate [electronic resource] / by K.J. Ellefsen ... [et al.].
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2007.
Mode of access: Internet from the USGS web site. Address as of 02/15/08: http://pubs.usgs.gov/sir/2007/5226/pdf/SIR%5F2007-5226.pdf; current access available via PURL.
Note
Title from title screen (viewed on Feb. 15, 2008).
