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001 49047
005 20260219114653.0
020 _a9780789568069
040 _aAIS
_dAIS
100 _aShelly, Cashman, Servatka
245 _aBusiness data communications: introductory concepts and techniques
082 _a004.6
250 _a4th ed.
260 _bThomson Course Technology
852 _d2009-10-31
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_d49047