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| 005 | 20130515020106.0 | ||
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_a"0, . " _93953 |
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_athe electronic communications problem solver: _b/ _c .. |
| 250 | _a ed. | ||
| 260 |
_anew york : _bresearch & education ass _c1987. |
||
| 300 |
_a", 1040p.; _c26 cm." |
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| 650 | 0 |
_aelectronic communications _925890 |
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_2lcc _cBK |
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_c60912 _d60912 |
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