Mode of access: Internet from USGS web site. Address as of 1/8/09: http://www.nwrc.usgs.gov/wdb/pub/hsi/hsi-005.pdf; current access available via PURL.
Note
Title from title page (viewed on Jan. 8, 2009).
"February 1982."
Bibliography
Includes bibliographical references.
Note
"FWS/OBS-82/10.5."
Reproduction
Electronic reproduction. Lafayette, La. : National Wetlands Research Center, [1999?]