Description
Item Description:Chiefly tables
On cover: In cooperation with the U.S. Environmental Protection Agency
Title from title screen (viewed on Sept. 27, 2007)
Physical Description:v, 109 p. : digital, PDF file
v, 109 pages : digital, PDF file
Format:Mode of access: Internet from the USGS web sit. Address as of 9/27/07: http://pubs.usgs.gov/of/2006/1266/pdf/ofr2006-1266.pdf ; current access via PURL
Bibliography:Includes bibliographical references (p. 11-15)
Includes bibliographical references (pages 11-15)