| 000 | 00403nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 211109s9999||||xx |||||||||||||| ||und|| | ||
| 082 |
_a384.55452 _bGRA-F |
||
| 100 | _aGraff, Robert D | ||
| 245 | 0 | _aF D R | |
| 260 |
_bHarper& Row _aNew York _c1962 |
||
| 630 | _xReference Reading Room | ||
| 650 |
_aCommunications; telecommunication _vCommerce, communications & transportation _xGeneralia |
||
| 942 | _cBOOK | ||
| 999 |
_c32967 _d32967 |
||