http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Paper version available from: Division of Science Resources Studies, National Science Foundation, Washington, D.C. 20550.
Some v. also available via Internet from the NSF SRS web site. Address as of 4/4/01: http://www.nsf.gov/sbe/srs/sed/start.htm; current access is available via PURL.
Microfiche. <1966-88-> [Washington, D.C.] : Supt. of Docs., U.S. G.P.O. microfiches : negative.
Special report (National Science Foundation (U.S.))