text Springfield, VA U.S. Dept. of Commerce, National Technical Information Service monographic Description based on first issue; title from title screen (viewed Nov. 4, 2008) United States National Technical Information Service. Technology Technology Research C 51.11/10: C 51.11/10: http://purl.access.gpo.gov/GPO/LPS104378 http://purl.access.gpo.gov/GPO/LPS104378 20160527183619.0 299493