Issues and challenges in the application of geostatistics and spatial-data analysis to the characterization of sand-and-gravel resources [electronic resource] / by Daniel R. Hack.
Imprint
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2005.
Mode of access: Internet from the USGA web site. Address as of 7/14/2008: http://pubs.usgs.gov/bul/b2209-j/b2209j.pdf; current access available via PURL.