USGS - science for a changing world

USGS Online Publications Directory

Icon  Name                           Last modified      Size  
[DIR] Parent Directory                                    -   
[IMG] report-thumb.jpg               03-May-2011 13:38  4.1K  
[   ] report.pdf                     19-Nov-2010 03:12  8.5M

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://http://pubs.usgs.gov/of/1990/0722/
Page Contact Information: GS Pubs Web Contact
Page Last Modified: Tuesday, July 28 2009, 01:08:18 PM