Importante! Sobre el catálogo
| LDR | ·····nam##22·····5##4500 |
| 001 | 000721 |
| 005 | 20110621153343.0 |
| 008 | 960000s1995####xx#####f#c###|0||#0#eng#d |
| 245 | 14 | $a The GB6 catalog of radio sources. |
| 260 | ## | $a Virginia : $b NRAO, $c 1995. |
| 300 | ## | $a [500] p. |
| 100 | 1# | $a Gregory, P. C. |
| 710 | 2# | $a National Radio Astronomy Observatory (Estados Unidos) $4 pbl. |
| 653 | ## | $a Catálogos. |
| 040 | ## | $a AR-BaBIR $b spa |