Special thanks are given to all those people outside of the Army Geospatial Center
who helped in this emergency project. They include the Reference Staff of the US Geological
Survey Library who replied promptly to our requests and made their services so accessible (http://library.usgs.gov/); the public services staff of the Defense Technical Information Center
(DTIC) who responded so quickly to our requests, and bent over backwards to make their
information available online to the public (http://stinet.dtic.mil); the Reference Staff of the
Geography and Map Division, The Library of Congress (http://www.loc.gov/rr/geogmap/) and
to Mr. Willie Sayeed of RefWorks for the use of their services in putting together and updating
the bibliography of citations from so many different electronic and manual resources so quickly
(www.RefWorks.com).