| Key Title: | Bell Telephone System Technical Publications | Publisher: | New York, NY, Bell Telephone Laboratories |
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| 001 | 16148 |
| 003 | IN-AhILN |
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| 222 | 0|aBell Telephone System Technical Publications |
| 245 | 10|aBell Telephone System Technical Publications |
| 260 | |aNew York, NY|bBell Telephone Laboratories |
| 044 | |dUS |
| 850 | |aBITS-333031 |
| 950 | |aBITS-333031|bH|cVol.1-27,1956-57 |