| 000 | 00328nam a2200121Ia 4500 | ||
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| 008 | 210209s9999||||xx |||||||||||||| ||und|| | ||
| 082 |
_a621.380413 _bK148M |
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| 100 |
_aKillen,H.B _923225 |
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| 245 | 0 |
_aModern electronic communication techniques _cH.BKillen |
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| 260 |
_aNew york _bMacmillan _c1985 |
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| 300 | _a555 | ||
| 942 | _cREF | ||
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_c65823 _d65823 |
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