Description
Item Description:Title from title screen (viewed on May 20, 2009).
Electronic resource.
Physical Description:xxiv, 472 pages : illustrations (some color), color maps ; 26 cm.
Format:Mode of access: Internet from GPO's Permanenet Public Access Server. Address as of 5/20/09: http://permanent.access.gpo.gov/lps111132/full%5Fdocument/ ; current access available via PURL.
Bibliography:Includes bibliographical references (pages 468-470) and index.