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| 020 | _a0-07-084096-2 | ||
| 082 | 0 | 0 | _a621. 380 413 mar |
| 100 | 1 | _a"marshall, g j. " | |
| 245 | 1 | 0 |
_aprinciples of digital communications: _b/ _c g.j. marshall |
| 250 | _a1 ed. | ||
| 260 |
_auk : _bmcgraw-hill _c1980. |
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| 300 |
_a"xi, 170p.; _c23 cm." |
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| 504 | _a | ||
| 650 | 0 |
_adigital communications _x |
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_c22303 _d22303 |
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