Description
Item Description:Title from title screen (viewed on Oct. 18, 2007).
Electronic resource.
Physical Description:xx, 440 pages : digital, PDF file.
Format:Mode of access: Internet. Address as of 10/18/07: http://www.nps.gov/history/history/onlineb̲ooks/chcu/culturee̲cology.pdf ; current access available via PURL.
Bibliography:Includes bibliographical references (pages [381]-423) and index.