| 000 | cam a22 a 4500 | ||
|---|---|---|---|
| 999 |
_c36519 _d36519 |
||
| 003 | BD-DhIDS | ||
| 005 | 20180405205359.0 | ||
| 008 | 180405s1970 -us||||| |||| 00| 0 eng d | ||
| 040 |
_aBD-DhIDS _cBD-DhIDS _dBD-DhIDS |
||
| 041 | _aEng | ||
| 082 |
_a384 _bTEL |
||
| 245 | 0 | 0 |
_aThe telecommunications business : _bhow it works. |
| 260 | _c1970 | ||
| 300 |
_a21p. : _bill. ; _c26 cm. |
||
| 650 | 0 | 4 | _aTelecommunications |
| 942 |
_2ddc _cBK |
||