Description
Item Description:Title from title screen (viewed on Jan. 8, 2008).
Electronic resource.
Physical Description:vi, 68 pages : digital, PDF file.
Format:Mode of access: Internet. Address as of 1/8/08: http://www.nps.gov/history/mwac/publications/pdf/tech47.pdf ; current access available via PURL.
Bibliography:Includes bibliographical references (pages 29-30).