-凯发平台

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040|  |▼adacodm
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100|  |▼a19920916a19729999m  y0engy0120    ba
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102|  |▼ausa
110|  |▼aafa    0uu0
200|10|▼adata communications
207| 0|▼av.1 (1972)-
210|  |▼anew york, n.y.▼cmcgraw-hill -
   |  |publications inc.
430|  |▼12001▼adata communications systems
530|0 |▼adata communications
531|  |▼adata commun.
541|1 |▼a（美）数据通信
676|  |▼a001.6/4/05
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