LEADER | 00456nam 2200157 4500 | | 008 | 060926s1990 us m a000 0 eng
| 016 | | 020 | | 040 | | 050 | 04 |a TK5101.A3 |b .G449p|d 1990 |
| 100 | | 222 | | 245 | 10 |a Principles of digital and analog communications / |c Jerry D. Gibson. |
| 260 | |a New York : |b Macmillan, |c c1989. |
| 300 | | 650 | 0 |a Telecommunication systems. | 0 |a Digital communications. |
| 930 | |a งปม./16/06/36 |h 1,340 Baht. |
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