http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
EPA's final ozone and particulate matter standards
John E. Blodgett, James E. McCarthy, and Larry B. Parker.
Microfilm. Arlington, Va. : University Publications of America, 1999. on 1 microfilm reel ; 35 mm. Low reduction. (Major studies and issue briefs of the Congressional Research Service. 1998 supplement ; reel 6, fr. 0617).
Major studies and issue briefs of the Congressional Research Service. 1998, reel 6, fr. 0617