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| 008 | 170703d19841984nyuu||p#r||||#00|#||eng#d | ||
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| 222 | 0 | _aAT and T Bell Laboratories technical journal | |
| 245 | 0 | 0 | _aAT and T Bell Laboratories technical journal |
| 246 | 2 | _aA T & T Bell Laboratories technical journal | |
| 246 | 2 | _aAT and T Bell Laboratories technical journal | |
| 247 | 1 | 1 | _aBell system technical journal |
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_aNew York, N.Y. : _bAmerican Telephone and Telegraph (AT&T), |
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