http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Switch element capacities in access area digital switching systems
National Telecommunications and Information Administration.
1 online resource (xiii, 176 pages) : illustrations
R.F. Linfield, M. Nesenbergs ; prepared for U.S. Army Communications Systems Agency.
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[Washington] : Dept. of Commerce, National Telecommunications and Information Administration, 1979