Miscellaneous national parks legislation : hearing before the Subcommittee on National Parks of the Committee on Energy and Natural Resources, United States Senate, One Hundred Tenth Congress, second session, on S. 662, S. 827, S. 923 S. 956, S. 2073, S. 2513, S. 2604, S. 2804, H.R. 53, H.R. 1483, H.R. 1528, April 23, 2008
Mode of access: Internet from the GPO Access web site. Address as of 10/14/08: http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=110%5Fsenate%5Fhearings&docid=f:44616.pdf; current access is available via PURL.