http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
low-cost solar water heating systems in the San Luis Valley
Title from title screen (viewed on Apr. 8, 2008).
Mode of access: Internet from the National Renewable Energy Laboratory web site. Address as of 4/8/08: http://www.nrel.gov/docs/legosti/old/1727.pdf ; current access available via PURL.