Não informado. (2004). Government Reports Announcements & Index. U.S. Department of Commerce, National Technical Information Service.
Chicago-referens (17:e uppl.)Não informado. Government Reports Announcements & Index. Springfield, Va: U.S. Department of Commerce, National Technical Information Service, 2004.
MLA-referens (8:e uppl.)Não informado. Government Reports Announcements & Index. U.S. Department of Commerce, National Technical Information Service, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.