00531nam a2200181 a 4500001001400000003000700014005001700021008004100038020001500079040000800094100002000102245004300122250001200165260004300177300003000220650003100250856006800281vtls000014506KUKTEM20251117142445.0060724t2005    nyua   f      000 0 eng d  a0071451439  aUMP1 aShepard, Steven10aTelecom crash course /cSteven Shepard  a2nd ed.  aNew York :bMcGraw-Hill/Osborne,c2005  a504 p. :bill. ;c23  cm. 0aTelecommunicationxHistory42ahttp://www.loc.gov/catdir/enhancements/fy0626/2005279075-d.html