| 000 | 00422nam a2200169 a 4500 | ||
|---|---|---|---|
| 001 | 20110609014754184 | ||
| 003 | eos | ||
| 005 | 20180705123258.0 | ||
| 008 | 020912s19uu xx 00 eng d | ||
| 082 | _a001.5 HEL Sp. | ||
| 100 | 1 | 0 | _aHellman, Hal. |
| 245 | 1 | 0 | _aNueva era de las comunicaciones. |
| 260 | 0 |
_aBuenos Aires, AR : _bMarymar, _c1978. |
|
| 300 | _a175 p. | ||
| 650 | 4 | _aComunicación. | |
| 942 |
_cBK _2ddc |
||
| 999 |
_c12220 _d12220 |
||