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200|10|▼aAT&T technical journal
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210|  |▼aNew York, N.Y.▼cAT&T
300|  |▼a其他题名：AT and T technical journal
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   |  |T Bell Laboratories technical journal
517|1 |▼aAT and T technical journal
530|0 |▼aAT&T technical journal
531|  |▼aATT tech. j.
532|1 |▼aAmerican Telephone and Teleg-
   |  |raph Company journal
690|  |▼aTN91
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