000 00306nam a2200109Ia 4500
008 210616s9999 xx 000 0 und d
100 _aAnnabel Z. Dodd
245 0 _aEssential Guide to Telecommunications
260 _c2009
650 _aSocial Science
_bCommerce, Communications, Transportation
942 _cBK
999 _c5861
_d5861