000 00455nam a2200157 a 4500
999 _c14621
_d14621
020 _a9351070298 (paperback)
020 _a9789351070290 (paperback)
100 1 _aHebbar.
245 1 0 _aIntroduction to Digital Switching System /
260 _a[S.l.] :
_bElsevier,
_c2012.
300 _a1 v. (unpaged) ;
650 _aDigital
650 _aSwitching System
856 4 0 _uhttp://www.amazon.com/exec/obidos/ASIN/9351070298/chopaconline-20
942 _cBK