http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Field guide to amphibian larvae and eggs of Minnesota, Wisconsin, and Iowa
by Jeffrey R. Parmelee, Melinda G. Knutson, and James E. Lyon with illustrations by Pearl Podgorniak.
Title from title screen (viewed May 10, 2007).
Mode of access: Internet from the USGS web site. Address as of 5/10/07: http://www.umesc.usgs.gov/documents/reports/2002/amphibian%5Flarvae%5Fand%5Feggs%5Ffield%5Fguide.pdf ; current access is available via PURL.
Information and technology report ; USGS/BRD/ITR--2002-0004